In a statement, Cheney said her support for the open and competitive Senate race was “not about political differences” but rather “about doing what’s right for our country.”

“The stakes in this election are unlike anything we have ever faced before, but the future of our democracy is at stake,” said Cheney, a former member of the Republican Party leadership in the House of Representatives, in Wednesday’s announcement.

“At a time when our democracy is being challenged, Liz Cheney’s voice has been critical,” Slotkin said in a statement, adding: “While we certainly don’t agree on every issue, I “We look forward to welcoming him back to Michigan next week to talk about the issues all Americans can come together on.”

Monday night’s event won’t be Cheney’s first time on the campaign trail with Slotkin. She supported the Michigan Democrat two years ago for Congress, marking the first time Cheney supported a candidate across partisan lines. This year, of course, she supported Harris over Trump in the presidential race.

At a 2022 event in Slotkin’s congressional district, Cheney urged voters to “look beyond partisan politics” for “the survival of our republic” — a tone the Wyoming Republican adopted during from a series of appearances with Harris this week.

Earlier this month, Cheney supported Democrats in two contested congressional elections in New York and Pennsylvania, which could hamper Republicans’ chances of retaining power in the lower house.