All of Trump's children attend Buckingham Palace State Banquet: Why were they there?

Why are all of Trump's children on his state visit to London?

President Trump and First Lady Melania attended an official State Banquet at Buckingham Palace on Monday evening following an invitation from Queen Elizabeth and, while daughter Ivanka Trump and her husband, Jared Kushner, were already slated to attend the lavish dinner as formal advisers to Ivanka's father, the presence of the president's other children came as a surprise to many.

Donald Trump Jr., Eric Trump and his wife, Lara, and Tiffany Trump also all attended the dinner on Monday, as evidenced by an Instagram post shared by Ivanka. Trump's youngest child, Barron, 13, was not there.

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Trump children on state visit to London
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Trump children on state visit to London
Quite the crew at Buckingham Palace last night. A truly unforgettable experience with Her Majesty The Queen. #london
A spectacular State Banquet hosted by Her Majesty The Queen at Buckingham Palace 🇺🇸🇬🇧
LONDON, ENGLAND - JUNE 03: Ivanka Trump and Secretary of State for International Trade, Liam Fox arrive through the East Gallery for a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones- WPA Pool/Getty Images)
Such an incredible honor to be invited to Buckingham Palace with Her Majesty The Queen and the amazing Royal Family. Truly an experience of a lifetime.
Magical night at Buckingham Palace with my best friend! ♥️
LONDON, UNITED KINGDOM - JUNE 03: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Ivanka Trump and Jared Kushner stand on a balcony of Buckingham Palace during the Ceremonial Welcome in the Buckingham Palace Garden for US President Donald Trump on day 1 of his State Visit to the UK on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - JUNE 03: Ivanka Trump (L), daughter of US President Donald Trump, and Britain's Prince Harry, Duke of Sussex, (R) view American items in the Royal collection at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Tolga Akmen - WPA Pool/Getty Images)
National Security Advisor of The US John Bolton and Ivanka Trump leave 10 Downing Street, London, on the second day of US President Donald Trump's state visit to the UK. (Photo by Aaron Chown/PA Images via Getty Images)
Touring Westminster Abbey after @POTUS and @FLOTUS laid a wreath at the Grave of the Unknown Warrior. #usstatevisit
🇺🇸🇬🇧
Unbelievable tour of the Churchill War Rooms deep under the streets of London. Much of World War II was run from this very chair. Thank you to Prime Minister May for the wonderful tour and this incredible experience!
LONDON, ENGLAND - JUNE 03: Ivanka Trump and husband, special advisor to the US president Jared Kushner, look on during a visit to Westminster Abbey on June 03, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Stefan Rousseau - WPA Pool/ Getty Images)
Looking forward to another great day in London. 🇺🇸🇬🇧 #USStateVisit
LONDON, ENGLAND - JUNE 03: Ivanka Trump and husband Jared Kushner watch from a balcony as US President Donald Trump inspects a Guard of Honour at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff J Mitchell/Getty Images)
LONDON, ENGLAND - JUNE 03: Jared Kushner and Ivanka Trump look out of the window at Buckingham Palace during the visit of US President Donald Trump and First Lady Melania Trump on June 03, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 04: John Bolton, US National Security Advisor, and Ivanka Trump leave 10 Downing Street for the Foreign and Commonwealth Office during the second day of President Trump's State Visit on June 4, 2019 in London, England. President Trump's three-day state visit began with lunch with the Queen, followed by a State Banquet at Buckingham Palace, whilst today he will attend business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff J Mitchell/Getty Images)
LONDON, ENGLAND - JUNE 03: Jared Kushner (R) and Ivanka Trump visit Westminster Abbery on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
US National Security Advisor John Bolton (L) and Ivanka Trump leave from 10 Downing Street in London on June 4, 2019, on the second day of the US President and First Lady's three-day State Visit to the UK. - US President Donald Trump turns from pomp and ceremony to politics and business on Tuesday as he meets Prime Minister Theresa May on the second day of a state visit expected to be accompanied by mass protests. (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
LONDON, UNITED KINGDOM - JUNE 03: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Ivanka Trump stands on a balcony of Buckingham Palace during the Ceremonial Welcome in the Buckingham Palace Garden for US President Donald Trump on day 1 of his State Visit to the UK on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Max Mumby/Indigo/Getty Images)
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SEE ALSO: Donald Trump accused of breaking royal protocol with Queen Elizabeth

While Ivanka sat between the U.K. Secretary of State for International Trade and Sophie, Countess of Wessex, her husband was seated next to the Queen's daughter, Princess Anne. Don Jr. sat next to Lady Bamford, Tiffany was next to Her Majesty's private secretary and Eric and his wife were separated during the event.

After news of Trump's children's attendance at the State Banquet, many online wondered why they were even there to begin with, noting that none of them have official roles in their father's administration, other than Ivanka. While she has gone on international trips with the president, their trip to the U.K. makes for the rest of Trump's kids have traveled abroad with him during his presidency, per People.

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Royal state banquet with the Trumps
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Royal state banquet with the Trumps
Britain's Queen Elizabeth II (3R), US President Donald Trump (L), and US First Lady Melania Trump (R) arrive inthe Music Room to pose for a photograph ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Foreign Secretary Jeremy Hunt and his wife Lucia arrive to attend a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (2L), US President Donald Trump (L), US First Lady Melania Trump (C), and Britain's Camilla, Duchess of Cornwall (2R) and Britain's Prince Charles, Prince of Wales arrive in the Music room to pose for a photograph ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Alastair Grant / POOL / AFP) (Photo credit should read ALASTAIR GRANT/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (3R), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (2L), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (C), US President Donald Trump (L) and US First Lady Melania Trump pose for a photograph in the Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (3R), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (2L), Britain's Prince Charles, Prince of Wales (C) and Britain's Camilla, Duchess of Cornwall (R) arrive to pose for a photograph in th Music Room, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
Britain's Queen Elizabeth II (2L), US President Donald Trump (L), US First Lady Melania Trump (C), Britain's Prince Charles, Prince of Wales (2R) and Britain's Camilla, Duchess of Cornwall pose for a photograph ahead of a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Doug Mills / POOL / AFP) (Photo credit should read DOUG MILLS/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: (L-R) U.S. President Donald Trump, Queen Elizabeth II, First Lady Melania Trump, Prince Charles Prince of Wales and Camilla Duchess of Cornwall attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (C),U.S. President Donald Trump (L) and First Lady Melania Trump (R) attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Jeff Gilbert - WPA Pool/Getty Images)
President Donald Trump and first lady Melania Trump walk with Queen Elizabeth II, followed by first lady Melania Trump, Prince Charles, and Camilla, Duchess of Cornwall, as they make their way into the Music Room for a State Banquet at Buckingham Palace, Monday, June 3, 2019, in London. (Doug Mills/Pool Photo via AP)
Britain's Catherine, Duchess of Cambridge (L) walks with US Secretary of Treasury Steven Mnuchin as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
From left, US President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
From left, US President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
Britain's Queen Elizabeth II, centre poses for a photo with US President Donald Trump, left and first lady Melania Trump ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (AP Photo/Alastair Grant, Pool)
From left, President Donald Trump, Britain's Queen Elizabeth II, first lady Melania Trump, Prince Charles and Camilla, the Duchess of Cornwall pose for the media ahead of the State Banquet at Buckingham Palace in London, Monday, June 3, 2019. Trump is on a three-day state visit to Britain. (Doug Mills/Pool Photo via AP)
Britain's Prime Minister Theresa May (L) walks with Britain's Prince William, Duke of Cambridge (C) followed by Britain's Catherine, Duchess of Cambridge (3L) as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: A general view of the State Banquet for U.S. President Donald Trump and First Lady Melania Trump at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
Britain's Queen Elizabeth II hosts US President Donald Trump and the US First Lady for a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
Britain's Prime Minister Theresa May (L) walks with Britain's Prince William, Duke of Cambridge as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Catherine,Duchess of Cambridge and United States Secretary of the Treasury, Steven Mnuchin arrive through the East Gallery for a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II make a toast during a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Queen Elizabeth II attend a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump makes a speech as Queen Elizabeth II listens during a State Banquet at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Dominic Lipinski- WPA Pool/Getty Images)
Britain's Prince Charles, Prince of Wales (R) walks with US First Lady Melania Trump as they arrive through the East Gallery during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (R) makes a speech as she hosts US President Donald Trump and the US First Lady for a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
Britain's Queen Elizabeth II (2R), US President Donald Trump (L), US First Lady Melania Trump (R) arrive in the Music room to pose for a photograph, ahead of a State Banquet in the ballroom, at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Alastair Grant / POOL / AFP) (Photo credit should read ALASTAIR GRANT/AFP/Getty Images)
RETRANSMITTED CORRECTING BYLINE (left to right) US President Donald Trump, Queen Elizabeth II, Melania Trump, the Prince of Wales and the Duchess of Cornwall, during a group photo ahead of the State Banquet at Buckingham Palace, London, on day one of US President Donald Trump's three day state visit to the UK.
RETRANSMITTED CORRECTING BYLINE US President Donald Trump and Queen Elizabeth II during a group photo ahead of the State Banquet at Buckingham Palace, London, on day one of US President Donald Trump's three day state visit to the UK.
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In response to a photo that Trump Jr. shared on his Twitter account from the dinner, CBS News White House reporter Kathryn Watson noted that, "the White House hasn't really offered an explanation for why the president's adult children who don't work in the administration are on this state visit."

Donald Jr. and Eric control the family's real estate business from their homes in New York City, with Trump Jr. spending increasingly more time on the campaign trail alongside girlfriend Kimberly Giulfoyle for his father's 2020 reelection campaign. Tiffany just finished her second year at Georgetown Law and most recently attended the 2019 Cannes Film Festival with her billionaire boyfriend.

SEE ALSO: Queen Elizabeth cheerfully toasts Trump during State Banquet

CNN pointed out that Trump showing up to a State Banquet with all of his children, where beloved royals Prince William, Kate Middleton and Prince Charles were all also in attendance, was "akin to showcasing his version of royalty." 

Ahead of meeting with the royal family numerous times on Monday, the president gave an interview with The Sun during which he expressed interest in his children holding a "next generation" meeting with William, Kate and Prince Harry, who "noticeably hung back" during a lunch with the Trumps earlier in the day but skipped out on the dinner. 

"I think my children will be meeting them," Trump said. "It would be nice."

No such formal meeting is expected to occur, though it's possible that they were introduced inside the banquet at Buckingham Palace.

While the White House has yet to offer an explanation for Donald Jr., Eric and Tiffany's presence at an official State Banquet, Quartz estimates that their travel to London cost American taxpayers nearly $5 million. The dinner itself was paid for by the Queen.

49 PHOTOS
Royal family welcomes the Trumps to Buckingham Palace
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Royal family welcomes the Trumps to Buckingham Palace
TOPSHOT - Britain's Queen Elizabeth II (R) shakes hands with US President Donald Trump during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II with U.S. President Donald Trump and First Lady Melania Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
US President Donald Trump (R) walks with Britain's Prince Charles, Prince of Wales (3R), and US First Lady Melania Trump (L) walks with Britain's Camilla, Duchess of Cornwall as they arrive for a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
US President Donald Trump (2L) and US First Lady Melania Trump (L) are greeted by Britain's Prince Charles, Prince of Wales (2R) and Britain's Camilla, Duchess of Cornwall after disembarking Marine One as they arrive for a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (L) stands with Britain's Camilla, Duchess of Cornwall (R) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / POOL / AFP) (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
Britain's Queen Elizabeth II (R) shakes hands with US President Donald Trump during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
US President Donald Trump inspects the guard of honour during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / AFP) (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
Britain's Queen Elizabeth II (R) walks with US President Donald Trump (2R), US First Lady Melania Trump (C), Britain's Prince Charles, Prince of Wales (2L) and Britain's Camilla, Duchess of Cornwall during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
US President Donald Trump (2R) and Britain's Prince Charles, Prince of Wales (3R) inspects the guard of honour during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / AFP) (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (second left) officially welcomes US President Donald Trump (C) and First Lady Melania Trump (L) with Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall (R) at a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II officially welcomes US President Donald Trump and First Lady Melania Trump at a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Queen Elizabeth II (2R) stands with US President Donald Trump (R) and US First Lady Melania Trump (C) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II officially welcomes US President Donald Trump as they attend a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Queen Elizabeth II (4L) stands with US President Donald Trump (C), US First Lady Melania Trump (3L), Britain's Prince Charles, Prince of Wales (2R) and Britain's Camilla, Duchess of Cornwall as they listen to the US national anthem during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
US President Donald Trump (L) walks with Britain's Prince Charles, Prince of Wales after inspecting the honour guard during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: US President Donald Trump and First Lady Melania Trump arrive by helicopter during their visit on June 03, 2019 at Buckingham Palace in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JUNE 03: US President Donald Trump and First Lady Melania Trump arrive by helicopter during their visit on June 03, 2019 at Buckingham Palace in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Chris Jackson/Getty Images)
Britain's Queen Elizabeth II (C) speaks with US President Donald Trump (R) as US First Lady Melania Trump (L) smiles during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
US President Donald Trump inspects the honour guard during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
US President Donald Trump (R) walks with Britain's Prince Charles, Prince of Wales (L), and US First Lady Melania Trump (C) walks with Britain's Camilla, Duchess of Cornwall (unseen) as they arrive for a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: US President Donald Trump attends a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Queen Elizabeth II (L) talks with US President Donald Trump (R) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
Britain's Queen Elizabeth II (C) stands with US President Donald Trump (R) and US First Lady Melania Trump (L) as they watch guardsmen parade during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
Britain's Queen Elizabeth II (C) stands with US President Donald Trump (R) and US First Lady Melania Trump (L) as they listen to the US national anthem during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
Britain's Queen Elizabeth II (4L) stands with US President Donald Trump (R) and US First Lady Melania Trump (C) as they listen to the US national anthem during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Queen Elizabeth II (C) stands with US President Donald Trump (R) and US First Lady Melania Trump (L) as they listen to the US national anthem during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
US President Donald Trump (C) and US First Lady Melania Trump (2L) are met by Britain's Prince Charles, Prince of Wales (2R) and Britain's Camilla, Duchess of Cornwall (R) after disembarking Marine One as they arrive for a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Victoria Jones / POOL / AFP) (Photo credit should read VICTORIA JONES/AFP/Getty Images)
US President Donald Trump (L) inspects the honour guard with Britain's Prince Charles, Prince of Wales (R) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
US President Donald Trump (R) inspects the honour guard with Britain's Prince Charles, Prince of Wales (L) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by TOBY MELVILLE / POOL / AFP) (Photo credit should read TOBY MELVILLE/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Prince Charles, Prince of Wales during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump and Prince Charles, Prince of Wales during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II officially welcomes US President Donald Trump and First Lady Melania Trump with Prince Charles, Prince of Wales at a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II (second left) officially welcomes US President Donald Trump (C) and First Lady Melania Trump (L) with Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall (R) at a a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II officially welcomes US President Donald Trump and First Lady Melania Trump at a Ceremonial Welcome at Buckingham Palace on June 03, 2019 in London, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II with U.S. President Donald Trump and First Lady Melania Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II with Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall welcome U.S. President Donald Trump and First Lady Melania Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
Guests including Ivanka Trump (2R) and her husband special advisor to the US president Jared Kushner (R) and US ambassador Woody Johnson (5L) watch during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / POOL / AFP) (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II with Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall welcome U.S. President Donald Trump and First Lady Melania Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II stands with US President Donald Trump during a welcome ceremony at Buckingham Palace on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Toby Melville - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II with U.S. President Donald Trump and First Lady Melania Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
Sarah Sanders (right), Donald Trump's press secretary, and Kellyanne Conway (left), political advisor, watch on from a window during the Ceremonial Welcome at Buckingham Palace, London, on day one of his three day state visit to the UK. (Photo by Yui Mok/PA Images via Getty Images)
LONDON, ENGLAND - JUNE 03: Queen Elizabeth II and U.S. President Donald Trump during the Ceremonial Welcome in the Buckingham Palace Garden on June 3, 2019 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - JUNE 03: Ivanka Trump (second right) and Jared Kushner (R) looks out of the window at Buckingham Palace during the visit of US President Donald Trump and First Lady Melania Trump on June 03, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Chris Jackson/Getty Images)
(L-R) US First Lady Melania Trump, Britain's Queen Elizabeth II and US President Donald Trump watch an honour guard during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of their three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by MANDEL NGAN / AFP) (Photo credit should read MANDEL NGAN/AFP/Getty Images)
Britain's Queen Elizabeth II (R) talks with US First Lady Melania Trump (L) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / AFP) (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump (R) and his wife Melania Trump (L) take tea with Prince Charles, Prince of Wales (2nd R) and Camilla, Duchess of Cornwall (2nd L) at Clarence House on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump (2nd L) and his wife Melania Trump (L) take tea with Prince Charles, Prince of Wales (2nd R) and Camilla, Duchess of Cornwall (R) at Clarence House on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones - WPA Pool/Getty Images)
LONDON, ENGLAND - JUNE 03: U.S. President Donald Trump (2nd L) and his wife Melania Trump (L) take tea with Prince Charles, Prince of Wales (2nd R) and Camilla, Duchess of Cornwall (R) at Clarence House on June 3, 2019 in London, England. President Trump's three-day state visit will include lunch with the Queen, and a State Banquet at Buckingham Palace, as well as business meetings with the Prime Minister and the Duke of York, before travelling to Portsmouth to mark the 75th anniversary of the D-Day landings. (Photo by Victoria Jones - WPA Pool/Getty Images)
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