Even when the top of the hierarchy becomes more ridiculous than imaginable, those at the top and their supporters keep plugging away to keep the top as viable as possible.
In his opinion piece in the Washington Post, "The Cowardice Among Republicans is Staggering," Michael Gerson points out the degree to which the top will put its head in the sand:
"The nearly uniform cowardice among elected Republicans is staggering. One is left wishing that Obamacare covered spine transplants. The Republican-led Congress is now an adjunct of the White House. The White House is now an adjunct of Trump's chaotic will."
https://www.washingtonpost.com/opinions/the-cowardice-among-republicans-is-staggering/2018/02/05/41852454-0aa9-11e8-8890-372e2047c935_story.html?utm_term=.2ca4f2bab1eb
