Clinton promotes gay rights as a main pillar of 2016 bid

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Clinton Pokes Fun at Republicans on Gay Rights

WASHINGTON (AP) — Hillary Rodham Clinton on Saturday delivered the strongest statement of support for gay rights in the 2016 presidential race when she promised that ending discrimination against gay, lesbian and transgender people would be a central pillar of her administration.

"I see the injustices and the dangers that you and your families still face," she told hundreds of gay activists at the annual meeting of the Human Rights Campaign. "I'm running for president to stand up for the fundamental rights of LGBT Americans."

She added: "That's a promise from one HRC to another."

SEE MORE: Hillary Clinton calls GOP rival 'dangerous'

The statement marked a remarkable evolution for Clinton, who opposed same-sex marriage for more than two decades in public life as first lady, senator and presidential candidate. As recently as this year, Clinton said that while she personally supported gay marriage, the issue was best left for states to decide —a position held by most of the Republican presidential field.

Clinton has placed equal rights at the forefront of her campaign, in part a reflection of the growing political and financial strength of the gay community in Democratic politics.

Click through to see more of Hillary Clinton through the years:

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Hillary Clinton through the years
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Clinton promotes gay rights as a main pillar of 2016 bid
A 1992 photo shows then Governor of Arkansas Bill Clinton (L) and his wife Hillary (R) embracing. (Photo credit AFP/Getty Images)
Democratic presidential candidate Bill Clinton (L) waves to supporters as he holds the hand of his wife Hillary, 22 July, 1992 after speaking at a rally. St. Louis was the last stop on the Clinton-Gore campaign's bus tour. The crowd was estimated at 40,000. (Photo credit Tim Clary, AFP/Getty Images)
US President Bill Clinton's wife Hillary Rodham Clinton (l) in a picture taken 16 January 1993 in Little Rock, hugs her daughter Chelsea during a farewell address to the people of Arkansas at an airport rally. The Clinton family then left for Charlottesville, Virginia for the start of the planned bus trip to Washington, DC. (Photo credit J. David Ake, AFP/Getty Images)
First Lady Hillary Clinton (R) watches over as 12-year-old Chevon Perry (L) works on a lesson at P.S. 115 Elementary School 26 January 1993. Clinton made her first trip as first lady to New York to receive an award for her service to children. (Photo credit Tim Clary, AFP/Getty Images)
First Lady Hillary Clinton responds to applause, 12 February 1993, in Arlington, VA, as U.S. President Bill Clinton stands behind her. (Photo credit Robert Giroux, AFP/Getty Images)
U.S. First Lady Hillary Rodham Clinton laughs as she is presented a bouquet of flowers by Japanee children 08 July 1993 at the Meguro waste incineration plant in Tokyo, Japan. Mrs. Clinton, maintaining a high profile during the G7 summit, is popular in Japan. (Photo credit David Nelson, AFP/Getty Images)
U.S. President Bill Clinton (R) and First Lady Hillary Rodham Clinton (L) listen to Karl Kregor explain, 16 September 1993 in Washington, D.C. why he is afraid of losng health isurance for his family.The Clintons met at the White House with citizens who shared problems they have had with the present health care system. Clinton is scheduled to present his health care plan to a joint session of congress 22 September. (Photo credit Paul Richards, AFP/Getty Images)
U.S. First Lady Hillary Clinton responds 22 September 1993 to applause from a joint session of the U.S. Congress in Washington, D.C. after President Bill Clinton saluted her as the 'talented navigator' for the national health plan he is proposing. Standing alongside the first lady is Dr. T. Berry Brazelton (L), a noted pediatrician and author. (Photo credit J. David Ake, AFP/Getty Images)
First Lady Hillary Clinton attends the Winter Olympics in Lillehammer, Norway. (Photo by Clive Brunskill, Getty Images)
US First Lady Hillary Clinton (L) and Wife of French Prime Minister Edouard Balladur, Marie-Josephe Balladur pose at the Hotel Matignon on June 7, 1994. (Photo credit Pascal Pavani, AFP/Getty Images)
First Lady Hillary Rodham Clinton (C) smiles at a friend in the crowd 28 September 1994 as she stands next to Russian First Lady Naina Yeltsin (L) during a ceremony at the Library of Congress. Mrs. Yeltsin was accompanying her husband on his visit to Washington for a summit meeting with US President Bill Clinton. AFP YEARENDER (Photo credit Joshua Roberts, AFP/Getty Images)
US President Bill Clinton (R) and First Lady Hillary Clinton leave the White House for the presidential retreat at Camp David, Maryland, 13 Janaury. President Clinton is waving a copy of the morning pool report on his activities, which was written as a poem. The poem begins ' The president jogged at Fort McNair....of him we saw not hide nor hair,' and ends with the slogan 'Burma Shave.' (Photo credit Paul Richards, AFP/Getty Images)
US First Lady Hillary Clinton laughs as she listens to political humorist Bill Maher address the annual dinner of the Radio and Television Correspondents Association in Washington on March 14, 1995. (Photo credit Paul J. Richards, AFP/Getty Images)
US First Lady Hillary Clinton (L) poses with 'Robo Crook'(R) a character from the television program Sesame Street at the White House in Washington, DC 26 June. Mrs. Clinton moderated a panel discussion on the role of Public Television in educating children. (Photo credit Jamal Wilson, AFP/Getty Images)
Hillary Clinton, wife of US President Bill Clinton, talks with Britain's Queen Elizabeth 30 November in the Grand Entrance Hall of Buckingham Palace in London. President Clinton and Hillary Clinton arrived 29 November morning for a three-day visit which will be dominated by the Northern Ireland peace process. (Photo credit John Stillwell, AFP/Getty Images)
US First Lady Hillary Clinton greets guests after speaking at the Women's Leadership Forum at the World Trade Center 20 June in Boston, Massachusetts.The First Lady will be in Washington DC later 20 June for the arrival of the Olympic Torch at the White House. (Photo credit John Mottern, AFP/Getty Images)
US First Lady Hillary Rodham Clinton waves from the bullet-proof presidential limousine as she and US President Bill Clinton leave Sydney International Airport on November 19, 1996. The Clintons arrived in Australia from Hawaii at the start of a five-day working and holiday visit. A(Photo credit should read Torsten Blackwood, AFP/Getty Images)
US President Bill Clinton (L)and his wife Hillary listen to speakers at a coalition for America's Children event at the White House in Washington, on March 3, 1997. The Clintons will begin a series of television, radio and newspaper public service annoucements, urging Americans to help improve the lives of children. (Photo credit Joyce Naltchayan, AFP/Getty Images)
Hillary Clinton proudly shows the tea-pot which had been a gift from community worker Joyce McCartan on the Clintons' previous visit to Belfast, during her speech at the University of Ulster, in Belfast 31 October. The memorial speech, named after Joyce McCartan, who died last year, called on parties from both sides to make compromises for peace in the country. The American First Lady is on a whistle-stop tour visiting Dublin, Belfast and London in three days. (Photo credit Alan Lewis, AFP/Getty Images)
US First Lady Hillary Clinton talks with NBC TV anchorwoman Katie Couric (L)10 September during an event in the East Room of the White House promoting colon cancer awareness and prevention. Hillary Clinton announced a new research grant to fight colon cancer and unveiled a new public service announcement to promote prevention. (Photo credit Tim Sloan, AFP/Getty Images)
US President Bill Clinton, First Lady Hillary Clinton, and their daughter Chelsea tour the Forbidden City in Beijing, as a Chinese security agent (rear) looks on 28 June during their 9 day official trip to China. The three later toured the Great Wall. (Photo credit Paul J. Richards, AFP/Getty Images)
US First Lady Hillary Rodham Clinton listens to speakers during ceremonies 11 January to unveil the new Dolley Madison commemorative silver dollar coin at the White House in Washington, DC. The coin, designed by Tiffany and Company is available at the US Mint and celebrates the life, achievements and 150th anniversary of Dolley Madison's death. (Photo credit Tim Sloan, AFP/Getty Images)
First Lady Hillary Clinton works the crowd as she arrives at Prior Aviation Services in Buffalo, New York, 07 February, 2000. Mrs. Clinton, who officially announced her run for US Senate 06 February, 2000, made Buffalo her fisrt campaign stop. ((Photo credit Don Emmert, AFP/Getty Images)
US First Lady Hillary Rodham Clinton (R) announces the formation of the Millenium Trails Celebration Committee 19 April, 1999 at the Central Park Boathouse in New York, New York. Millenium Trails is a national initiative to create and enhance hiking, cultural and other trails across the country. It partners the White House Millenium Council, the Department of Transportation and the Rails-to-Trails Conservancy. (Photo credit Stan Honda, AFP/Getty Images)
US President Bill Clinton (L) and First Lady Hillary Rodham Clinton (R) wait on the South Portico for the arrival of King Juan Carlos I and Queen Sofia 23 February 2000 at the White House in Washington, DC. The Clintons hosted an arrival ceremony for their visit. (Photo credit Stephen Jaffe, AFP/Getty Images)
US First Lady and New York US Senate candidate Hillary Clinton waves to the crowd as she arrives on the stage at the Democratic National Convention 14 August 2000 at the Staples Center in Los Angeles, California. (Photo credit Paul J. Richards, AFP/Getty Images)
U.S. Senate candidate and First Lady Hillary Rodham Clinton gives a thumbs-up sign to supporters at the Hispanic Day Parade October 8, 2000 in New York City. (Photo by Chris Hondros/Newsmakers via Getty)
US First Lady Hillary Clinton smiles during a press conference in New York 08 November, 2000. Clinton defeated Congressman Rick Lazio to win the US Senate seat for New York being vacated by Patrick Moynihan. AFP PHOTO Doug KANTER (Photo credit Doug Kanter, AFP/Getty Images)
U.S. Senator-elect, First Lady Hillary Clinton walks through the U.S. Capitol during an orientation day for new senators December 5, 2000 in Washington, DC. (Photo by Mark Wilson/Newsmakers via Getty)
Senator Hillary Rodham Clinton listens during Labor Secretary-designate Elaine Chao's confirmation hearing January 24, 2001 on Capitol Hill in Washington, DC. (Photo by Alex Wong/Newsmakers via Getty)
Sen. Hillary Rodham Clinton (D-NY) attends a press conference to address the equal pay act June 12, 2001 Capitol Hill in Washington, DC. The AFL-CIO''s Working Women Working Together held a news conference to introduce a campaign for legislation to step up enforcement of the 1963 Equal Pay Act. (Photo by Alex Wong/Getty Images)
New York Senator and former First Lady, Hillary Rodham Clinton, signs copies of her autobiography, 'Living History' at Waterstone?s bookstore on July 3, 2003 in London, England. In her autobiography, Clinton reveals her presidential ambitions and her thoughts on Monica Lewinsky. (Photo by Scott Barbour/Getty Images)
Senator Hillary Rodham Clinton appears with Jon Stewart during 'The Daily Show With Jon Stewart' at the Daily Show Studios October 8, 2003 in New York City. (Photo by Scott Gries/Getty Images for The Daily Show)
Sen. Hillary Rodham Clinton (D-NY) attends a news conference in front of the United Nations to denounce the International Court of Justice's recent decision on Israel's security fence July 9, 2004 in New York City. The International Court in The Hague has ruled that the barrier Israel has nearly completed in the West Bank violates international law, and the court ruled that the United Nations should take action to stop its construction. (Photo by Spencer Platt/Getty Images)
U.S. Senator Hillary Rodham Clinton (D-NY) speaks while former U.S. President Bill Clinton listens during a visit to the New York Buddhist Vihara December 31, 2004 in the Queens borough of New York City. The Clintons toured the temple where volunteers have been collecting donations for victims of the tsunami in Sri Lanka. (Photo by Stephen Chernin/Getty Images)
Sen. Hillary Rodham Clinton (D-NY) speaks at a Democratic forum on Social Security reform at Pace University March 4, 2005 in New York City. A group of Democratic Senators spoke at the forum to protest U.S. President George W. Bush's plan to privatize Social Security. (Photo by Mario Tama/Getty Images)
U.S. Senator Hillary Clinton (D-NY) stands near her portrait during an unveiling ceremony at the Smithsonian April 24, 2006 in Washington DC. President Clinton's portrait will hang in the National Portrait Gallery's 'America's President's' exhibit. (Photo by Mark Wilson/Getty Images)
Hillary Rodham Clinton watches a speaker on the final day of the Clinton Global Initiative annual meeting September 22, 2006 in New York City. A large array of notables in the worlds of politics, human rights, and philanthropy have gathered in the New York for three days of seminars and pledges on global issues. (Photo by Chris Hondros/Getty Images)
Democratic presidential hopeful Sen. Hillary Clinton (D-NY) speaks during a post primary rally at Southern New Hampshire University January 8, 2007 in Manchester, New Hampshire. After losing to Sen. Barack Obama (D-IL) and Edwards in Iowa, Clinton (D-NY) won New Hampshire, the first of the nation's presidential primaries. (Photo by Chris Hondros/Getty Images)
US Senator Hillary Clinton and daughter Chelsea are seen at the lectern during a soundcheck at the Democratic National Convention 2008 at the Pepsi Center in Denver, Colorado, on August 26, 2008. Clinton takes the stage tonight vowing to unite Democrats after her primary battle with Barack Obama, on the second day of the convention that will crown him as White House nominee. The DNC is held 25-28 August. (Photo credit Stan Honda, AFP/Getty Images)
Democratic presidential nominee U.S. Sen. Barack Obama (D-IL) and Sen. Hillary Clinton (D-NY) attend a campaign rally together at Amway Arena October 20, 2008 in Orlando, Florida. Obama continues to campaign against his challenger, Republican presidential nominee Sen. John McCain (R-AZ) while Election Day begins to draw near. (Photo by Joe Raedle/Getty Images)
Former US President Bill Clinton (L) and US Secretary of State-designate Hillary Clinton (R) attend the inauguration of US President Barack Obama at the US Capitol in Washington, DC, on January 20, 2009. (Photo credit Robyn Beck, AFP/Getty Images)
U.S. Secretary of State Hillary Clinton (L) is sworn in as her husband former President Bill Clinton (2nd L), and her daughter Chelsea (R) look on during a ceremonial swearing-in at the State Department February 2, 2009 in Washington, DC. Clinton is the 67th Secretary of State of the United States of America. (Photo by Alex Wong/Getty Images)
US Secretary of State Hillary Clinton attends a press conference on February 21, 2009 in Beijing, China. Clinton is on a three day visit to the Chinese capital, as part of her first diplomatic tour to Asia. (Photo by Guang Niu/Pool/Getty Images)
US Secretary of State Hillary Clinton speaks on the US vision for Asia-Pacific multilateral engagement at the East-West Center in Honolulu January 12, 2010. (Photo credit Mandel Ngan, AFP/Getty Images)
US Secretary of State Hillary Clinton, smiles during a press conference after Middle East Quartet talks in Moscow on March 19, 2010. The International Quartet on the Middle East urged Israel to freeze all settlement activity and expressed deep concern about the situation in Gaza, UN Secretary General Ban Ki-moon said. (Photo credit Yuri Kadobnov, AFP/Getty Images)
US Secretary of State Hillary Clinton speaks before signing the US-China Consultation on People-to-People Exchange agreement at the National Center for the Performing Arts in Beijing on May 25, 2010. The United States and China were wrapping up strategic talks aimed at smoothing out differences on currency and trade issues, as Washington presses Beijing to get tough on North Korea. (Photo credit Saul Loeb, AFP/Getty Images)
U.S. Secretary of State Hillary Clinton listens to Ambassador-Designate to Russia Michael McFaul during his swearing-in ceremony at the State Department January 10, 2011 in Washington, DC. McFaul is President Barack Obama's top adviser on Russia and has been involved in the reset of relations between the two countries and the signing of the New START treaty. (Photo by Astrid Riecken/Getty Images)
U.S. Secretary of State Hillary Clinton speaks during the South Sudan International Engagement Conference December 14, 2011 at the Marriott Wardman Park Hotel in Washington, DC. The two-day conference was to highlight the national development vision of South Sudan and the opportunities for investment in the country. (Photo by Alex Wong/Getty Images)
US Secretary Hillary Clinton speaks to reporters during a joint press conference with Qatar's Prime Minister and Foreign Minister Hamad bin Jassim bin Jabr Al-Thani at the Department of State January 11, 2012 in Washington, DC. (Photo credit Karen Bleier, AFP/Getty Images)
US Secretary of State Hillary Clinton (R) shakes hands with Moroccan Foreign Minister Saad-Eddine el-Othmani prior to meetings at the State Department in Washington, DC, on March 15, 2012. (Photo credit Saul Loeb, AFP/Getty Images)
US Secretary of State Hillary Clinton smiles during a joint press conference with Australian Foreign Minister arr following their meeting at the State Department in Washington, DC, on April 24, 2012. (Photo credit Jewel Samad, AFP/Getty Images)
U.S. Secretary of State Hillary Clinton testifies before the House Foreign Affairs Committee on Capitol Hill January 23, 2013 in Washington, DC. Lawmakers questioned Clinton about the security failures during the September 11 attacks against the U.S. mission in Benghazi, Libya, that led to the death of four Americans, including U.S. Ambassador Christopher Stevens. (Photo by Chip Somodevilla/Getty Images)
Former US Secretary of State Hillary Clinton addresses the Vital Voices Global Awards ceremony at the Kennedy Center in Washington on April 2, 2013. The event honors 'women leaders from around the world who are the unsung heroines to strengthen democracy, increase economic opportunity, and protect human rights,' according to the group's website. (Photo credit Nicholas Kamm, AFP/Getty Images)
Former US Secretary of State Hillary Clinton speaks about the situation in Syria after meeting with US President Barack Obama, prior to remarks about US efforts to combat wildlife trafficking at a White House forum at the Eisenhower Executive Office Building in Washington, DC on September 9, 2013. (Photo credit Saul Loeb, AFP/Getty Images)
Former Secretary of State Hillary Rodham Clinton speaks on stage at the Pennsylvania Conference For Women 2013 at Philadelphia Convention Center on November 1, 2013 in Philadelphia, Pennsylvania. (Photo by Lisa Lake/Getty Images for Pennsylvania Conference for Women)
Hillary Clinton attends the New-York Historical Society 2014 History Makers Gala at Mandarin Oriental Hotel on November 21, 2014 in New York City. (Photo by Brad Barket/Getty Images)
Hillary Rodham Clinton Book Signing For 'Hard Choices' at Barnes & Noble bookstore at The Grove on June 19, 2014 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
Former U.S. Secretary of State Hillary Clinton delivers a keynote address during the Watermark Silicon Valley Conference for Women on February 24, 2015 in Santa Clara, California. Former Secretary of State Hillary Clinton delivered a keynote address to thousands of women in attendance for the Watermark Silicon Valley Conference for Women. (Photo by Justin Sullivan/Getty Images)
Former Secretary of State Hillary Clinton speaks on stage during a ceremony to induct her into the Irish America Hall of Fame on March 16, 2015 in New York City. The Irish America Hall of Fame was founded in 2010 and recognizes exceptional figures in the Irish American community. (Photo by Yana Paskova/Getty Images)
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Vice President Joe Biden, who is considering a 2016 run, was to speak at the group's dinner, while Clinton was booked on "Saturday Night Live."

In her appearance, Clinton said she has been "fighting alongside you and others for equal rights and I'm just getting warmed up."

As activists chanted her name, she promised to work to pass legislation that would end discrimination, lower costs for HIV treatment and stop funding child welfare agencies that discriminate against gay parents.

She committed to pushing equal rights in the military, including for transgender people. Defense Secretary Ash Carter has said the Pentagon's current regulations banning transgender individuals from serving in the military are outdated. He has ordered a study aimed at ending one of the last gender- or sexuality-based barriers to military service.

Clinton's remarks, particularly on the transgender issue, went further than any other candidate in the race. "We need to say with one voice that transgender people are valued," she said. "They are loved and they are us."

See more of Clinton on the campaign trail:

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Hillary Clinton's 2016 campaign
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Clinton promotes gay rights as a main pillar of 2016 bid
BALTIMORE, MD - APRIL 10: Democratic presidential candidate Hillary Clinton holds a campaign rally at City Garage April 10, 2016 in Baltimore, Maryland. Voters will head to polling places for Maryland's presidential primary April 26. (Photo by Chip Somodevilla/Getty Images)
Democratic U.S. presidential candidate Hillary Clinton laughs as she listens to Representative Steve Israel (D-NY) speak on a gun control panel in Port Washington, New York April 11, 2016. REUTERS/Lucas Jackson
NEW YORK, NY - APRIL 09: Democratic presidential candidate Hillary Clinton holds a Latino organizing event on April 9, 2016 while campaigning in the Brooklyn Borough of New York City. The New York Democratic primary is scheduled for April 19th. (Photo by Andrew Renneisen/Getty Images)
SPRINGFIELD, MA - FEBRUARY 29: Democratic presidential candidate former Secretary of State Hillary Clinton speaks during a 'Get Out The Vote' rally at the Lyman & Merrie Wood Museum of Springfield History on February 29, 2016 in Springfield, Massachusetts. Hillary Clinton is campaigning in Massachusetts and Virginia ahead of Super Tuesday. (Photo by Justin Sullivan/Getty Images)
BOSTON, MA - Former Secretary of State Hillary Clinton speaks to supporters at the Old South Meeting Hall during a rally in Boston, Massachusetts on Monday February 29, 2016. (Photo by Melina Mara/The Washington Post via Getty Images)
MINNEAPOLIS, MN - MARCH 01: Democratic presidential candidate former Secretary of State Hillary Clinton greets patrons at Mapps Coffee on March 1, 2016 in Minneapolis, Minnesota. Hillary Clinton is campaigning in Minnesota as Super Tuesday voting takes place in 12 states. (Photo by Justin Sullivan/Getty Images)
Democratic presidential candidate Hillary Clinton greets supporters as she arrives at a rally at Abraham Lincoln High School in Des Moines, Iowa, Sunday, Jan. 31, 2016. (AP Photo/Andrew Harnik)
Democratic presidential candidate Hillary Clinton speaks at a rally at Abraham Lincoln High School in Des Moines, Iowa, Sunday, Jan. 31, 2016. (AP Photo/Andrew Harnik)
Democratic presidential candidate Hillary Clinton, accompanied by her daughter Chelsea Clinton, reacts to applause as she arrives for a rally at Abraham Lincoln High School in Council Bluffs, Iowa, Sunday, Jan. 31, 2016. (AP Photo/Andrew Harnik)
Democratic presidential candidate Hillary Clinton, left, hugs Annette Bebout, 73, of Newton, during a campaign event at Berg Middle School, Thursday, Jan. 28, 2016 in Newton, Iowa. Bebout told her story of how she lost her home to the audience. (AP Photo/Paul Sancya)
Democratic presidential candidate Hillary Clinton, accompanied by former President Bill Clinton, right, and their daughter Chelsea Clinton, left, arrives to speak at a rally at Washington High School in Cedar Rapids, Iowa, Saturday, Jan. 30, 2016. (AP Photo/Andrew Harnik)
Democratic presidential candidate Hillary Clinton speaks at a rally at BR Miller Middle School in Marshalltown, Iowa, Tuesday, Jan. 26, 2016. (AP Photo/Andrew Harnik)
Democratic presidential candidate, Hillary Clinton makes a point during the Brown & Black Forum, Monday, Jan. 11, 2016, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Clinton, right, and high school teacher David Swaney laugh about their colorful outfits before Swaney asks Clinton a question during a town hall at NewBo City Market in Cedar Rapids, Iowa, Monday, Jan. 4, 2016. (AP Photo/Patrick Semansky)
Democratic presidential candidate Hillary Clinton reacts to applause from the audience while standing with Brenda Bouchard, an Alzheimer's research advocate, during a town hall style campaign event, Tuesday, Dec. 29, 2015, at South Church in Portsmouth, N.H. (AP Photo/Steven Senne)
Democratic presidential candidate Hillary Clinton speaks about her counterterrorism strategy during a speech at the University of Minnesota Tuesday, Dec. 15, 2015, in Minneapolis. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Clinton meets local residents at Apple Orchard Cafe Friday, Dec. 4, 2015, in Fort Dodge, Iowa. (AP Photo/Charlie Neibergall)
Hillary Rodham Clinton reacts as she talks to supporters after a Democratic presidential primary debate, Saturday, Nov. 14, 2015, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Rodham Clinton greets supporters before speaking at a campaign rally in Boulder, Colo., Tuesday, Nov. 24, 2015. (AP Photo/Brennan Linsley
Democratic presidential candidate Hillary Rodham Clinton smiles as she arrives to speak at a town hall meeting Sunday, Nov. 22, 2015, in Clinton, Iowa. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Rodham Clinton speaks from a gymnasium side porch to people who weren't able to fit in to hear her speech at Fisk University Friday, Nov. 20, 2015, in Nashville, Tenn. (AP Photo/Mark Humphrey)
Democratic presidential candidate Hillary Rodham Clinton shakes hand with a supporter during a town hall meeting Tuesday, Nov. 3, 2015, in Coralville, Iowa. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Rodham Clinton speaks to customers at the White Mountain Cafe & Bookstore, Thursday, Oct. 29, 2015, in Gorham, N.H. (AP Photo/Robert F. Bukaty)
Democratic presidential candidate Hillary Rodham Clinton speaks during a meeting of the Alabama Democratic Conference in Hoover, Ala., Saturday, Oct. 17, 2015. Clinton tells black Alabama Democrats that she'd champion voting rights in the White House. She says Republicans are dismantling the progress of the civil rights movement. (AP Photo/Mark Almond)
MOUNT VERNON, IOWA - OCTOBER 7: Former Secretary of State Hillary Clinton speaks to voters during an outdoor town hall meeting at Cornell College in Mount Vernon, Iowa on Wednesday October 7, 2015. (Photo by Melina Mara/The Washington Post via Getty Images)
Democratic presidential candidate Hillary Rodham Clinton reacts to a supporter before speaking at a community forum, Tuesday, Oct. 6, 2015, in Davenport, Iowa. (AP Photo/Charlie Neibergall)
MUSCATINE, IOWA - OCTOBER 6: Former Secretary of State Hillary Clinton speaks to a voter before leaving a farm in Muscatine, Iowa on Tuesday October 6, 2015. (Photo by Melina Mara/The Washington Post via Getty Images)
MANCHESTER, NH - OCTOBER 05: Democratic presidential candidate Hillary Rodham Clinton holds a town hall meeting at the Manchester Community College on October 5, 2015 in Manchester, New Hampshire. Clinton spoke about the need for gun control on the wake of a mass shooting at another community college in Oregon. (Photo by Alfredo Sosa/The Christian Science Monitor via Getty Images)
Democratic presidential candidate Hillary Rodham Clinton gestures as she speaks at Human Rights Campaign gathering in Washington, Saturday, Oct. 3, 2015. ( AP Photo/Jose Luis Magana)
DAVIE, FL - OCTOBER 02: Democratic presidential candidate Hillary Clinton speaks about gun control during her campaign stop at the Broward College à Hugh Adams Central Campus on October 2, 2015 in Davie, Florida. Hillary Clinton continues to campaign for the nomination of the Democratic Party as their presidential candidate. (Photo by Joe Raedle/Getty Images)
Democratic presidential candidate Hillary Rodham Clinton speaks at a grassroots organizing meeting at Philander Smith College Monday, Sept. 21, 2015, in Little Rock, Ark. (AP Photo/Gareth Patterson)
WASHINGTON, DC - SEPTEMBER 19: Hillary Clinton attends the Phoenix Awards Dinner at the 45th Annual Legislative Black Caucus Foundation Conference at Walter E. Washington Convention Center on September 19, 2015 in Washington, DC. (Photo by Earl Gibson III/Getty Images)
MANCHESTER, NH - SEPTEMBER 19: Democratic presidential candidate Hillary Clinton claps on stage during the New Hampshire Democratic Party Convention at the Verizon Wireless Center on September 19, 2015 in Manchester, New Hampshire. Challenger for the democratic vote Sen. Bernie Sanders (I-VT) has been gaining ground on Clinton in Iowa and New Hampshire. (Photo by Scott Eisen/Getty Images)
PORTLAND, ME - SEPTEMBER 18: Hillary Clinton brings her Democratic presidential campaign to Maine for the first time, speaking at King Middle School. Clinton is welcomed as she is introduced at the event. (Photo by Derek Davis/Portland Press Herald via Getty Images)
CEDAR RAPIDS, IA - SEPTEMBER 7: Democratic Presidential hopeful Hillary Clinton takes time to meet supporters and take photos at the Annual Hawkeye Labor Council AFL-CIO Labor Day picnic on September 7, 2015 at Hawkeye Downs in Cedar Rapids, Iowa. Clinton spent a busy Labor Day weekend in Iowa, meeting supporters throughout the state while trying to maintain a lead over Bernie Sanders for the Democratic nomination. (Photo by David Greedy/Getty Images)
US Democratic presidential candidate Hillary Clinton takes part in a discussion after speaking about the Iran nuclear deal at the Brookings Institution in Washington, DC, on September 9, 2015. Clinton expressed firm support for the nuclear accord with Iran, calling it flawed but still strong. Clinton added that the agreement must be strictly enforced and said that if elected president next year, she would not hesitate to use military force if Iran fails to live up to its word and tries to develop a bomb. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
PORTSMOUTH, NH - SEPTEMBER 5: Democratic presidential candidate Hillary Clinton and U.S. Senator Jeanne Shaheen take an off the schedule stop in the River Run Bookstore before shaking hands with onlookers on September 5, 2015 in Portsmouth, New Hampshire. (Photos by Charles Ommanney/The Washington Post via Getty Images)
PORTSMOUTH, NH - SEPTEMBER 5: Democratic Presidential candidate Hillary Clinton receives an endorsement from U.S. Senator Jeanne Shaheen (D-NH) September 5, 2015 in Portsmouth, New Hampshire. Clinton attended a Women for Hillary event at Portsmouth High School. (Photo by Darren McCollester/Getty Images)
PORTSMOUTH, NH - SEPTEMBER 5: Democratic Presidential candidate Hillary Clinton walks downtown Portsmouth and takes pictures with people September 5, 2015 in Portsmouth, New Hampshire. Clinton attended a Women for Hillary event at Portsmouth High School earlier in the day and received an endorsement from U.S. Senator Jeanne Shaheen (D-NH). (Photo by Darren McCollester/Getty Images)
LAS VEGAS, NEVADA - AUGUST 18: Former Secretary of State Hillary Clinton answers questions from journalists after speaking to north Las Vegas voters at a town hall meeting in Las Vegas, on Tuesday, August 18, 2015. The former Secretary was answering questions about emails sent and received a private server system, now in question, while she was the Secretary of State. (Photo by Melina Mara/The Washington Post via Getty Images)
UNITED STATES - August 15: Democratic presidential candidate Hillary Rodham Clinton greets fairgoers as she tours the Iowa State Fair in Des Moines, Iowa, on Saturday, August 15, 2015. (Photo By Al Drago/CQ Roll Call)
Democratic presidential candidate Hillary Rodham Clinton tours the Des Moines Area Rapid Transit Central Station with general manager Elizabeth Presutti, left, and building superintendent Keith Welch, Monday, July 27, 2015, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
CARROLL, IA - JULY 26: Democratic presidential hopeful and former Secretary of State Hillary Clinton speaks to guests gathered for a house party on July 26, 2015 in Carroll, Iowa. Although Clinton leads all other Democratic contenders, a recent poll had her trailing several of the Republican candidates in Iowa. (Photo by Scott Olson/Getty Images)
Democratic presidential hopeful Hillary Rodham Clinton greets supporters after a campaign event, Thursday, July 23, 2015 in Columbia, S.C. Clinton talked about what she said was a lack of educational and economic opportunities, and a criminal justice system that treats blacks more harshly than whites. (AP Photo/Stephen B. Morton)
Chelsea Galinos, 21, left, who painted a picture of the democratic presidential hopeful Hillary Rodham Clinton, right, greets Clinton after a campaign event in New York, Monday, July 13, 2015. (AP Photo/Seth Wenig)
Democratic presidential candidate Hillary Rodham Clinton speaks during a campaign stop at the Iowa City Public Library, Tuesday, July 7, 2015, in Iowa City, Iowa. (AP Photo/Charlie Neibergall)
FILE - In this June 20, 2015, file photo, Democratic presidential candidate Hillary Rodham Clinton speaks at the U.S. Conference of Mayors 83rd Annual Meeting in San Francisco. Clinton’s presidential campaign jumped on the Supreme Court decision, changing its red campaign logo to a rainbow colored H, releasing a gauzy video of gay wedding ceremonies, and blasting out supportive tweets aimed at building its campaign list. But like President Barack Obama, such expressions of support mark a remarkable shift for Clinton, who opposed gay marriage for more than two decades as a first lady, a U.S. senator and a presidential candidate. (AP Photo/Mathew Sumner, File)
Democratic presidential candidate Hillary Rodham Clinton speaks to supporters during a rally, Sunday, June 14, 2015, in Des Moines, Iowa. Seeking an army of volunteers, Clinton is trying to build an organizational edge in Iowa as some of her lesser-known Democratic rivals clamor for attention in the state that tripped up her first presidential campaign. (AP Photo/Charlie Neibergall)
Democratic presidential candidate Hillary Rodham Clinton speaks to supporters during a rally, Sunday, June 14, 2015, in Des Moines, Iowa. Clinton's campaign has signaled Iowa will be the centerpiece of its ground game. (AP Photo/Charlie Neibergall)
Democratic presidential candidate former Secretary of State Hillary Rodham Clinton waves to supporters as her husband former President Bill Clinton, second from right, Chelsea Clinton, second from left, and her husband Marc Mezvinsky, join on stage Saturday, June 13, 2015, on Roosevelt Island in New York. (AP Photo/Frank Franklin II)
Democratic presidential candidate, former Secretary of State Hillary Rodham Clinton speaks at the "Hillary For America" official campaign launch event at Four Freedoms Park, Roosevelt Island on Saturday, June 13, 2015, in New York. (Photo by Greg Allen/Invision/AP)
Supporters watch as democratic presidential candidate, former Secretary of State Hillary Rodham Clinton speaks Saturday, June 13, 2015, on Roosevelt Island in New York. (AP Photo/Frank Franklin II)
Democratic presidential candidate, former Secretary of State Hillary Rodham Clinton speaks to supporters Saturday, June 13, 2015, on Roosevelt Island in New York. (AP Photo/Frank Franklin II)
Democratic presidential candidate Hillary Rodham Clinton delivers a speech at Texas Southern University in Houston, Thursday, June 4, 2015. Clinton is calling for an expansion of early voting and pushing back against Republican-led efforts to restrict voting access, laying down a marker on voting rights at the start of her presidential campaign. (AP Photo/Pat Sullivan)
CHICAGO, IL - MAY 20: Democratic presidential hopeful and former Secretary of State Hillary Clinton arrives for a meeting with parents and child care workers at the Center for New Horizons on May 20, 2015 in Chicago, Illinois. Clinton arrived in Chicago after campaigning Monday and Tuesday in Iowa. (Photo by Scott Olson/Getty Images)
Democratic presidential candidate Hillary Rodham Clinton greets a local resident while visiting local shops on main street in Independence, Iowa, Tuesday, May 19, 2015. (AP Photo/Charlie Neibergall)
LAS VEGAS, NV - MAY 05: Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton (C) poses with students and faculty after speaking at Rancho High School on May 5, 2015 in Las Vegas, Nevada. Clinton said that any immigration reform would need to include a path to 'full and equal citizenship.' (Photo by Ethan Miller/Getty Images)
Hillary Rodham Clinton, a 2016 Democratic presidential contender, steps to the podium to speak at the David N. Dinkins Leadership and Public Policy Forum, Wednesday, April 29, 2015, in New York. (AP Photo/Mark Lennihan)
NEW YORK, NY - APRIL 23: Hillary Rodham Clinton (L) and actress Maggie Gyllenhaal attend the 2015 DVF Awards at United Nations on April 23, 2015 in New York City. (Photo by Michael Stewart/FilmMagic)
NEW YORK, NY - APRIL 29: Democratic presidential hopeful and former Secretary of State Hillary Clinton speaks during the David N. Dinkins Leadership and Public Policy Forum at Columbia University April 29, 2015 in New York City. Clinton addressed the unrest in Baltimore, called for police body cameras and a reform to sentencing. (Photo by Kevin Hagen/Getty Images)
Democratic presidential candidate Hillary Rodham Clinton meets with employees at Whitney Brothers during a campaign stop, Monday, April 20, 2015, in Keene, N.H. (AP Photo/Jim Cole)

Hillary Clinton announced her campaign for president on Sunday April, 12, 2015 with a video on YouTube. 

(Screenshot from YouTube)

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This summer, her campaign jumped on the Supreme Court's watershed same-sex marriage decision, changing Clinton's red campaign logo to a rainbow colored H, releasing a video of gay wedding ceremonies and sending supportive tweets.

Clinton said Saturday that the court's decision could be overturned, should a Republican win the White House next year and appoint conservative justices.

The Human Rights Campaign made its first presidential endorsement in 1992, backing Bill Clinton, and Hillary Clinton cast herself as a champion for their cause. In 2008, the group largely stayed out of the primary fight, siding with then-Illinois Sen. Barack Obama a day before Clinton dropped out of the race.

Clinton credited the organization with influencing her views.

"I'm really here to say thank you for your hard work and your courage and for insisting that right is right," she said. "You helped change a lot of minds. Including mine."

Clinton backed her husband's Defense of Marriage Act in 1996, and said in a Senate speech in 2004 that marriage between a man and a woman was a "fundamental bedrock principle." In 2007, she dodged when asked whether she agreed with a statement from the then-Joint Chiefs of Staff chairman that homosexuality was immoral.

But like much of the Democratic Party and the country, her position shifted in recent years. As secretary of state, Clinton said at a 2011 conference in Geneva that "gay rights are human rights, and human rights are gay rights."

She referenced that statement two years later when she released a video saying she backed gay marriage "personally, and as a matter of policy and law." In April, her campaign released a statement voicing her support for making gay marriage a constitutional right.

But as recently as a year ago, she was still struggling to explain her switch in position.

"You are trying to say that I used to be opposed and now I am in favor and I did it for political reasons," she said, in an tense exchange last June with NPR's Terry Gross. "That's just flat wrong."

Her pivot on the issue may give her primary opponents a chance to broadcast their liberal credentials, allowing them to point out that they came to the right side of history years before Clinton.

Vermont Sen. Bernie Sanders, a 2016 rival, voted against the 1996 Defense of Marriage Act when he was in the House. His home state was the first to legalize same-sex unions in 2000 and gay marriage through legislative action in 2009_both efforts Sanders backed.

"For far too long our justice system has marginalized the gay community," Sanders said in a statement after the Supreme Court ruling, "and I am very glad the court caught up to the American people."

Biden won praise by endorsing gay marriage ahead of the 2012 election and became the highest elected official to support what was then a highly charged political issue. Obama followed soon after.

WATCH: Clinton visits The Tonight Show:

Hillary Clinton Channels Her 'Chill' on the 'Tonight Show'

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