Former Wyoming Republican Rep. Liz Cheney has endorsed Kamala Harris for president. The former congresswoman announced the news Tuesday at an event at Duke University in North Carolina, making her the latest Republican to publicly declare that she will not support Donald Trump.

“I don’t think we have the luxury of putting the names of the candidates on the ballot, especially in the swing states,” Cheney, the daughter of former Republican Vice President Dick Cheney, told the crowd. “And as a conservative, as someone who believes in and cares about the Constitution, I’ve thought deeply about this and the present danger that Donald Trump poses. Not only am I not voting for Donald Trump, I’m voting for Kamala Harris.”

Cheney’s announcement, which was met with cheers from the audience, puts her on the growing list of lifelong Republicans who will vote against Trump. In March, former Vice President Mike Pence told Fox News that he would not support his former running mate in November, citing Trump’s actions on Jan. 6 and reversals on issues such as forcing the sale of TikTok to China.

Other prominent Republicans who voted against the party’s nominee include Adam Kinzinger, the former Republican representative for Illinois; Olivia Troye, who served as Pence’s homeland security adviser in the Trump administration; and Stephanie Grisham, one of Trump’s former press secretaries. They all spoke at the recent Democratic convention in Chicago. These appearances follow years in which establishment Republicans Mitt Romney and Paul Ryan, known as “Never Trumpers,” have denounced Trump and the risks they believe he poses to the nation’s health.

On Tuesday, a day before Cheney’s announcement, Jimmy McCain, the son of former Republican Senator John McCain, said he too would vote for the Democrats because of what he saw as Trump’s lack of hostility and disrespect toward the military.

“I care about my family, I care about equal rights for everyone in this country. All of that is important to me, and you know, as much as I’ve maintained my independence, I’ve decided it’s time to move on and do what I believe in,” McCain told CNN on Tuesday.

Cheney has long been a Trump critic. In 2021, she was one of 10 Republicans who voted to impeach Trump after the Jan. 6 riots. Weeks later, Cheney was voted out of her leadership role among House Republicans. In a closed-door vote before her impeachment, Cheney was reportedly booed after criticizing Trump.