WASHINGTON (AP) — Liz Cheney, one of Donald Trump’s fiercest Republican antagonists, will join Democrat Kamala Harris at a campaign event in Wisconsin on Thursday aimed at reaching out to moderate voters and rattling the former president. Cheney was the top Republican on the House committee that investigated the Jan. 6, 2021, insurrection , earning Trump’s disdain and effectively exiling herself from her own party.

Cheney lost her Wyoming seat to a Trump-endorsed candidate two years ago and she endorsed Harris , the Democratic nominee, last month. The two women will appear together in a historic white schoolhouse in Ripon, where a series of meetings held in 1854 to oppose slavery’s expansion led to the birth of the Republican Party. Harris is opening a two-day stay in Wisconsin and Michigan, and Trump will be in Michigan on Thursday as the two candidates grapple for wins in the “blue wall” battleground states, which also include Pennsylvania.

Harris’ visit to Wisconsin comes one day after a federal judge unsealed a 165-page court filing outlining prosecutors’ case against Trump for his attempt to overturn his 2020 election defeat. Trump has pleaded not guilty to charges of conspiracy and obstruction. It’s uncommon, to say the least, for a candidate to give a nod to the origins of the opposing party in the closing weeks of a presidential campaign.

Not only that, the Cheney name was once anathema to Democrats who deplored Dick Cheney, Liz’s father, for his r.