Trump brought some of this on himself.

I've voted Republican in every election starting with Nixon. I just shook VP Pence's hand at a Lindsey Graham kick off rally. I'll vote for Trump again in 2020.
That being said I think some of this Russian Collusion is Trumps fault. We know without a doubt Russia meddled, we knew that Russia hacked the DNC. Every intelligence agency was screaming it from the roof top but Trump insisted that they were wrong and he took Putin's word that Russia wasn't involved.
I can understand why he said that, to agree that Russia meddled would have delegitmized his presidency in the eyes of democrats and the MSM. However in doing that he opened the door to these same people to claim that the reason he wouldn't believe his agencies was because he colluded with them.
Kind of a damn if he did and damn if he didn't. I think he did take the better option, but perhaps there was an even better option than just these 2?