Democratic Rep. Haley Stevens of Michigan endorsed Republican Mike Rogers for the U.S. Senate on Sunday, two days before the election, breaking with Abdul El-Sayed, the progressive who beat her for the Democratic nomination. Stevens made a surprise appearance with Rogers at a church service in Detroit and joined him to address reporters afterward.
The move stunned many Democrats, one of whom called it a "despicable betrayal." The Detroit Free Press reported that members of Stevens's staff quit after the endorsement.

The feud between Stevens, a centrist, and El-Sayed, who represents the party's left wing, had boiled over in recent days. Stevens demanded that El-Sayed denounce an advertisement from an outside liberal group linking U.S. support for Israel to high prices; El-Sayed criticized the ad and said he had nothing to do with it. Stevens had been scheduled to appear with El-Sayed on Sunday in a show of party unity, but he reportedly asked her not to come.
According to The Washington Post, Stevens told former Michigan Gov. Jim Blanchard on Saturday evening that she planned to attend the church service with El-Sayed, and even texted him the address. The final New York Times/Siena poll released Sunday showed El-Sayed leading Rogers 53% to 42%.