Conrad Black, he has few equals:
"This odd man, so overbrimming with conscience and full of consultation with the Almighty, has finally revealed his purpose in returning to public life. His incandescent conscience managed to be a self-enriching asset-stripper at Bain and Company. He possessed a near-Olympian talent for flipping in all four directions on practically every public policy question from abortion and healthcare to taxes. But he could not manage his spirit of vengeance."
"From February 5, 2020, onward, Romney is a political outcast—a briefly useful idiot for the defeated Democrats and a traitor to the party he once led in a presidential election."
https://amgreatness.com/2020/02/05/romneys-discreditable-dishonest-vote/