The national press secretary for the Human Rights Campaign Foundation will speak at the Democratic National Convention in Philadelphia this week, marking the first time an openly transgender person will address a major party's convention.

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“Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE won’t be the only woman to make history this Thursday. When Sarah McBride takes the stage, she will become the first transgender person to speak at a national Democratic or Republican convention,” Human Rights Campaign President Chad Griffin said in a statement on Sunday.

“Sarah’s inclusion in Thursday’s program is a significant milestone for our community, and it sends a strong message that transgender people and their voices matter."

Sarah McBride was invited to speak at the convention by the Congressional LGBT Equality Caucus. She will speak after Caucus Co-Chairman Sean Patrick Maloney, a New York congressman.

McBride said she was "honored" to have the chance to share her story.

“People must understand that even as we face daily harassment, tragic violence, and an onslaught of anti-LGBTQ political attacks across the country, we are real people merely seeking to be treated with the dignity and respect every person deserves," she said in a statement.

"I'm so proud to stand with the LGBT Caucus and speak out in support of Hillary Clinton, because we know she stands with us.”

Griffin, who will also speak at the convention, said the event will show a clear contrast between the Democratic and Republican tickets.

"I'm also honored to address a national convention where LGBTQ advocates will play such an integral and historic role," he said.

"Next week’s Democratic National Convention will underscore the stark contrast between Hillary Clinton and Tim Kaine Timothy (Tim) Michael KaineNames to watch as Trump picks Ginsburg replacement on Supreme Court Barrett seen as a front-runner for Trump Supreme Court pick Biden promises Democratic senators help in battleground states MORE’s vision for a more equal America, and [Republican presidential nominee] Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE and Mike Pence Michael (Mike) Richard PenceMcConnell locks down key GOP votes in Supreme Court fight Momentum growing among Republicans for Supreme Court vote before Election Day Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election MORE’s agenda of hate and division.”

The Human Rights Campaign endorsed Clinton, the presumptive Democratic presidential nominee, in January.