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 Trumps disdain and effectively exiling herself from her own party.

She 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 at a college in Ripon, home to a white schoolhouse where a series of meetings held in 1854 to oppose slaverys expansion led to the birth of the Republican Party .

Harris is opening a two-day trip to 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.

President Joe Biden said Thursday that he wasnt concerned about a Trump-Harris race coming down to the wire because it always gets this close.

Shes gonna do fine, Biden said of Harris to reporters on the South Lawn of the White House on his way to visit storm-ravaged Georgia and Florida. He added that Harris running mate, Minnesota Gov. Tim Walz, did well in his debate with Republican vice presidential nominee JD Vance during Tuesdays debate in New York.