The Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, has endorsed the presidential campaign of Hillary Rodham Clinton.

The organization said that its 32 community leaders from across the nation had voted unanimously for Clinton.

“Thank you, @HRC,” Clinton's campaign tweeted.

Clinton is expected to accept the group's endorsement on Sunday, January 24 at an event in Des Moines, Iowa.

“All the progress we have made as a nation on LGBT equality – and all the progress we have yet to make – is at stake in November,” HRC President Chad Griffin said. “In most states, LGBT people are still at risk of being fired, evicted or denied services simply because of who they are. Today, 63 percent of LGBT Americans report having experienced such discrimination, and we are seeing other troubling trends, from the onslaught of state and local anti-LGBT measures to the national scourge of anti-transgender violence to backsliding on HIV/AIDS prevention and youth homelessness. Against this backdrop, we’ve heard the leading Republican presidential candidates repeatedly threaten to block our progress, and to revoke, repeal, and overturn the gains we’ve made during President Obama’s two terms.”

“While they fight to take us backwards, Hillary Clinton is fighting to advance LGBT equality across our nation and throughout the world. We are proud to endorse Hillary Clinton for president, and believe that she is the champion we can count on in November – and every day she occupies the Oval Office,” he added.

In a two-and-a-half minute video touting Clinton's record on LGBT rights, HRC lashed out at leading Republican presidential candidates Donald Trump, Senator Ted Cruz, Senator Marco Rubio, Jeb Bush, Ben Carson, Carly Fiorina, Senator Rand Paul and Mike Huckabee, saying that they “want to take us backwards.”