It's not really a bubble. Trump was a discomfort within the Republican party from the beginning. It was always an uncomfortable alliance, even before the massive incompetence and circus-like atmosphere jumped up, and never let up.
This is a case of an elastic band being stretched. Fatigue sets in, the material fails, and the recoil is not pretty. It is coming, so everybody will just watch until it does occur.
In general, the Republican party is spineless, as exemplified by Rand and his wishy-washy waffling. Some of the braver ones have stood up, and I think more will in the near future.