They aren’t going to do any of Trump’s agenda. This is all designed to force Trump to say “screw it” and resign. The only problem with this is that most of these idiots in the Republican Party will be replaced by democrats.
It is not really traumatic for these “republicans” to lose an election. They just go to work for Chamber of Commerce members as much higher paid lobbyists. That is why it is so easy and seemingly inevitable that Good Men get elected on high Conservative Principles and on their first day in DC switch to being representatives of the Chamber of Commerce.