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.

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 role as vice president under George W. Bush.