Are key Republican leaders in D.C. being blackmailed?
Is the Pope Catholic?
Does a Bear ...
Yeah, and do babies poop yellow?
How long ago, how many unreal (but close) votes, how many policy reversals ago was that?
For the most part, anyone of any standing in the party (with perhaps a half dozen exceptions) is compromised if they have any skeletons in the closet or can be made to appear to have had any wrongdoing in their past.
Note, too, that the scope of "wrongdoing", once limited to illegal acts, now includes having ever flown a confederate battle flag or making a statement any of the perpetually offended protected groups can howl about with the complete assistance of the MSM.
That is darned tough for even a moral but outspoken person to avoid, especially when the 'offense' is ex post facto.
Crimes go unpunished (or at least untried), votes are lost by 'narrow' but calculated margins, illegal actions of the administration and usurpations of power go unchallenged, and all is funded in due course.
Mere partisan politics, well played, would demand meaningful challenges at every turn, but the promises made to the electorate continue to go unfulfilled, and the agenda proceeds.
I don't think just the key Republicans are compromised, I think most of them are.