According to Hoyer's office, the vote switchers in question were Issa, Valadao, Denham, Walden, Walters, Poliquin, and Young.
Valadao, Denham and Poliquin are gone next year, then.
Valadao and Poliquin are not in districts where this vote is going to hurt them.. Not that an irrelevant vote like this would have an effect on a congressional race anyway.
Valadao is from a D+2 district with a growing Hispanic population. Poliquin was basically a rental from the beginning. Trump is on the ballot. They're gone.
Maybe, but keep in mind that the Democrats seemed to have made the choice not to contest ME-02, instead opting to nominate sacrificial lamb Emily Cain.