The problem right now is both parties go to their corners and immediately begin to fight for their side. Few are willing to see if the other party might be right about a particular issue. It is so partisan right now.
Personally, I don't see how Trump can wriggle out of this assuming the whistleblower has credible information, which he or she appears to have. Sadly, I do feel like no matter what Trump does or how damming the evidence is, the Republicans will defend him. Pretty scary.
Lastly, we now know the whistleblower is someone from the CIA thanks to the New York Times. Some are wondering if it was ethical for the NYT to publish that. As a journalist myself, I think if you get your hands on sensitive information, provided it wasn't given to you off the record, go ahead and publish it. We're in for a wild ride with this. No doubt.