" stand behind an under-investigation president with zero credibility"
This is my nightmare scenerio, which may or may not happen, but I fear another civil war in America. Because the Republicans may just welcome it if the alternative is to hand the country to the likes of Bernie Sanders and Elizabeth Warren. They have made their bed. I would not doubt if more in the Republican leadership knew and/or participated in the use of Putin's cyber army. And they fear the whole house of cards coming down on them.
Just as we underestimated his ability to convince enough voters to win the WH, we underestimate the angry blind loyalty Trump inspires in his base. Between his whining about the press, or his bragging about the size of something or other, are his rallying cries declaring how soon there will be a bright day ahead where everyone is happy and rich, at least the ones that matter. No plan, no budget, just his incredible super-narcissistic ability to be able to project his circus ring talents to a large audience of easy marks. This is a very dangerous gift he has.
So his fans will be none too pleased if there is even an attempt to strip Trump of his job. I think liberals get fooled that he is going down inevitably because most all news shows, and other talk shows are made on the liberal voting coasts. We cheer on Colbert and are comforted that his audience overwhelmingly is cheering with you. But a recent survey said 95% of his past voters would vote for him again. And these are the people that stocked up on guns for eight years to avoid the coming Obama raids, if not long before that. The republicans could just ignore the institutions, afraid of using them to bring down their base's messiah, and just sit back and allow a full deplorable take-over to protect them.
I pray they have the courage and ethics to make the second choice, but we should be prepared for the first.