Sarah McBride made history after she won a seat in the Delaware state Senate.
She is now the first openly transgender state senator in the United States.
McBride, 30, will also be the nation’s highest-ranking openly transgender elected official.
She defeated her Republican opponent, Steven Washington, 73% to 27%, with all precincts reporting.
McBride tweeted after her win on Tuesday night: “I hope tonight shows an LGBTQ kid that our democracy is big enough for them, too.”
The Human Rights Campaign, for which McBride is a spokesperson, took to Twitter to congratulate her.
“We’re so proud of you for this historic win,” the group wrote.