I'm certainly not the greatest Trump fan (although I voted for him), but there's no doubt Trump is getting railroaded.
They couldn't prove collusion with Russia (duh), so they went on a fishing expedition hoping he'd commit some sort of process crime.
In short, by the law/legally they have nothing.
But they still keep whining and probing as if given enough time they'll find something.
What they are doing is simply unethical if not totally illegal.
The whole idea that Trump colluded with the Russians was a sort of LSD-inspired hallucination by sore losers who wanted to win by any means, fair or foul. Mostly foul.