Congresswoman Haley Stevens, who lost the Michigan Democratic Senate primary to Abdul El-Sayed, endorsed his Republican rival, Mike Rogers, in an extraordinary rebuke of her party’s nominee on the eve of the midterm elections.

Her endorsement came in a video posted to X after she attended an event with Rogers at the predominantly Black Perfecting church in Detroit on Sunday. Stevens’s endorsement was the culmination of an escalating feud between the former primary rivals – primarily over support for Israel – that has roiled one of the most fiercely contested Senate contests of the cycle.

The endorsement was met with immediate pushback from Democrats , who condemned Stevens for her “betrayal”.

Michigan’s Democratic party chair Curtis Hertel said: “Haley Stevens’ decision to campaign with Rogers – a man who has repeatedly sold out Michigan’s working class, wants to pass a national abortion ban, and has pledged to be a loyal vote for Trump’s agenda – shows that she has abandoned everything she claims to care…