Republican congresswoman Liz Cheney on Thursday endorsed Democratic congresswoman Elissa Slotkin of Michigan and plans to campaign for her.
It is the first time that Cheney, a critic of Donald Trump who lost her Republican primary, has crossed party lines to formally support a Democrat.
Cheney, of Wyoming, announced her support for the two-term House member from Holly, Michigan, in a statement by the Slotkin campaign that notes she plans to headline a campaign event with Slotkin in the…