Jared Kushner's younger brother had vowed to #MarchForOurLives. And he did.

Josh Kushner, the younger brother of President Donald Trump’s senior adviser and son-in-law Jared Kushner, joined the “March For Our Lives” protest march in Washington on Saturday. 

The Kushner brother had promised to attend the anti-gun violence rally in an earlier Instagram post. His girlfriend, model Karlie Kloss, also participated in the gathering.

Kloss shared a photo on Instagram of her and Delaney Tarr, a 17-year-old survivor of last month’s Parkland, Florida, mass shooting ― the tragedy that claimed 17 lives at a high school and sparked the demonstration in Washington and similar marches across the U.S.and the world.

“Today, and every day, we will continue to fight for those things that are right. We will continue to fight for common sense. We will continue to fight for our lives,” Kloss wrote in a caption, quoting Tarr. 

#iwillmarch

A post shared by Joshua Kushner (@joshuakushner) on

Josh Kushner made headlines earlier this month for donating $50,000 to March For Our Lives. 

Axios reported that the 32-year-old founder of venture capital firm Thrive Capital and health insurance company Oscar had “quietly” made the donation. 

RELATED: Check out the scenes at March for Our Lives rallies across the country: 

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Hundreds of thousands attend March for Our Lives in Washington DC
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Hundreds of thousands attend March for Our Lives in Washington DC
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: Students from Centreville, Virginia wear targets on their chests as they arrive for the March for Our Lives rally March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers, and parents are expected to gather for the anti-gun violence rally, spurred largely by the shooting that took place on Valentine's Day at Marjory Stoneman Douglas High School in Parkland, Florida where 17 people died. (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - MARCH 24: Students from Centreville, Virginia wear targets on their chests as they arrive for the March for Our Lives rally March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers, and parents are expected to gather for the anti-gun violence rally, spurred largely by the shooting that took place on Valentine's Day at Marjory Stoneman Douglas High School in Parkland, Florida where 17 people died. (Photo by Win McNamee/Getty Images)
A student from Baltimore, Maryland, holds a protest sign during the March for Our Lives Rally in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
A student from Baltimore, Maryland, holds a protest sign during the March for Our Lives Rally in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
Participants hold up signs as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Aaron P. Bernstein
A woman wears a protest shirt as people arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
A demonstrator arrives before students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Eric Thayer
WASHINGTON, DC - MARCH 24: Protesters gather for the March for Our Lives rally along Pennsylvania Avenue March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers and parents gathered in Washington for the anti-gun violence rally organized by survivors of the Marjory Stoneman Douglas High School school shooting on February 14 that left 17 dead and 17 others wounded. More than 800 related events are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Chip Somodevilla/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - MARCH 24: People protest during the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters arrive for the March for Our Lives rally March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers, and parents are expected to gather for the anti-gun violence rally, spurred largely by the shooting that took place on Valentine's Day at Marjory Stoneman Douglas High School in Parkland, Florida where 17 people died. (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters arrive for the March for Our Lives rally March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers, and parents are expected to gather for the anti-gun violence rally, spurred largely by the shooting that took place on Valentine's Day at Marjory Stoneman Douglas High School in Parkland, Florida where 17 people died. (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters arrive for the March for Our Lives rally March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers, and parents are expected to gather for the anti-gun violence rally, spurred largely by the shooting that took place on Valentine's Day at Marjory Stoneman Douglas High School in Parkland, Florida where 17 people died. (Photo by Win McNamee/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters hold signs as they wait for the beginning of the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Alex Wong/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters Daisy Hernandez of Virginia (R) and Hunter Nguyen of Maryland (L) hold their hands up as they wait for the beginning of the March for Our Lives rally on March 24, 2018 in Washington, DC. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Alex Wong/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / ANDREW CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / ANDREW CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / ANDREW CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / Nicholas Kamm (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. Galvanized by a massacre at a Florida high school, hundreds of thousands of Americans are expected to take to the streets in cities across the United States on Saturday in the biggest protest for gun control in a generation. / AFP PHOTO / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters gather for the March for Our Lives rally along Pennsylvania Avenue March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers and parents gathered in Washington for the anti-gun violence rally organized by survivors of the Marjory Stoneman Douglas High School school shooting on February 14 that left 17 dead and 17 others wounded. More than 800 related events are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Chip Somodevilla/Getty Images)
WASHINGTON, DC - MARCH 24: Protesters gather for the March for Our Lives rally along Pennsylvania Avenue March 24, 2018 in Washington, DC. Hundreds of thousands of demonstrators, including students, teachers and parents gathered in Washington for the anti-gun violence rally organized by survivors of the Marjory Stoneman Douglas High School school shooting on February 14 that left 17 dead and 17 others wounded. More than 800 related events are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Chip Somodevilla/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / Alex Edelman (Photo credit should read ALEX EDELMAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
A man holds a sign as people arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / Andrew CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
TOPSHOT - People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
People arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
Angela Sitaras, a junior at Marjory Stoneman Douglas High School in Parkland, Florida, holds a sign referring to the 17 students killed in the February 14 mass shooting at her high school as she rallies with thousands of other students and young people at the "March for Our Lives" event demanding gun control in Washington, U.S., March 24, 2018. REUTERS/Jonathan Ernst
Protesters raise signs during a "March For Our Lives" demonstration demanding gun control in New York City, U.S. March 24, 2018. REUTERS/Shannon Stapleton
Michael J. Weissman, 18, a Marjory Stoneman Douglas student, where a mass shooting occurred last February 14 that left 17 dead, carries a sign as he and other participants hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Leah Millis
Participants hold up signs as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Aaron P. Bernstein
Participants carry signs and show slogans on their hands as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Aaron P. Bernstein TEMPLATE OUT.
Isabel White, an 8th grader who will go to Marjory Stoneman Douglas High School in Parkland, Florida next year, displays a banner as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, U.S., March 24, 2018. REUTERS/Jonathan Ernst
WASHINGTON, DC - MARCH 23: The stage for the March for Our Lives rally is seen along Pennsylvania Ave NW as workers build the stage ahead of the March for Our Lives rally on Friday, March 23, 2018, in Washington, D.C. (Photo by Salwan Georges/The Washington Post via Getty Images)
The US Capitol building is seen as people arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / Andrew CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
The US Capitol building is seen as people arrive early for the March For Our Lives rally against gun violence in Washington, DC on March 24, 2018. / AFP PHOTO / Andrew CABALLERO-REYNOLDS (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)
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Kushner has described himself as a “lifelong Democrat.” In 2016, he said through a spokesman that he would not be voting for Trump.

At the Women’s March in Washington the day after Trump was inaugurated last year, Kushner was photographed in a crowd of demonstrators. According to the Washingtonian, Kushner told other marchers he was there “observing.”

Trump and his Twitter account were unusually silent on Saturday as hundreds of thousands of protesters marched in cities across the U.S. and around the world demanding meaningful gun reform.

White House spokeswoman commented on the rallies, saying, “We applaud the many courageous young Americans exercising their first amendment rights today.”

Trump was criticized earlier this month for apparently caving in to pressure from the National Rifle Association and backpedaling on gun control measures he’d supported in the wake of the Parkland massacre. Teenage survivors of the shooting came up with the idea for Saturday’s marches.

The president has instead pushed for arming some teachers in schools ― an idea that law enforcement and education groups have called wrongheaded.

  • This article originally appeared on HuffPost.
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