I have to say, though, that Trump hasn’t been helping himself in making it appear that’s the case.
[Update a couple minutes later]
The case for dumping Trump lies with his supporters.
Yup. There are many Republicans on the Hill who would love to replace Trump with Pence, but they won’t do so until they have some sense that it wouldn’t result in riots from his die-hard fans. His approval will have to get a lot lower to make it possible. Impeachment is not a legal, but political act.
[Update a while later]
It’s like waiting for Godot: When does the evidence for collusion arrive?