Generally speaking, politicians are so completely full of effluent, and are so accustomed to spewing it from their talk-holes, that in the unlikely event that the unvarnished truth might escape their lips, it would undoubtedly leave an unfamiliar and unpleasant taste in their mouths. 

Lisa, Don, and Sully are no exception, and they will say what their party expects them to say as they collectively effort to keep their party in control. Not to stay "in the right", because right or wrong doesn't really matter all that much,  but just to maintain their desperate grasp on the reins of power. 

Trump is who he is, and he at least doesn't pretend to be something else. That doesn't mean he's right or deserves their's, or anybody else's support. But it is pretty amusing to see the rest of the republican party faithful to squirm while, internally, their party allegiance battles against their reason and sanity.