"Where there's smoke, there's fire!" in reference to the repeated Republican investigations (more like Spanish Inquisitions) of her and the right-wing media accusations.

Yet Trump's openly deplorable actions/comments didn't seem to bother them as much.

I don't have much education/background in psychology, but maybe there's a psychological aspect to it?

I've also seen African American co-workers act friendlier to openly racist white co-workers and they later told me, "At least I KNOW where they stand. It's the people who try to hide their racism that you have to look out for!"