The question has stalked Republicans since the 2016 campaign: If all those horrible things you said about Donald Trump were true, how can you turn around and support him? The evolutions of the likes of former New Jersey governor Chris Christie and Sen. Lindsey O. Graham (R-S.C.) might take the cake. But there were also many Republicans who unendorsed Trump or even called on him to drop out of the race after the release of the “Access Hollywood” tape, then embraced him again when he didn’t heed their calls.