I think the bishops have to come to terms not only with their culpability in giving Trump a pass on the racism that characterized the whole of his public life, in and out of politics, but also with the fact that their wrong-headed political activism around abortion and, more recently, same sex marriage put them in bed with some of the most vile persons and ideas in American politics.  At least one bishop even announced several years ago that he had joined the Republican party.  Maybe he's apologized to his diocese for that (I don't live in his diocese), but if he has, I haven't seen it.