While I'm not fond of Trump's penchant for going off on tangents or trying to get his aides to do things they shouldn't, the facts are Trump didn't collude and no investigators were stopped from investigating.
Basically, they're now trying to nail Trump for thought crimes. Saying because he wanted to do something illegal but didn't is a crime is standing justice on its head.
IIRC talking to someone from a foreign country is not a crime. A presidential aide refusing to obey a command from his boss is not a crime either.
I guess the next thing Dems will try to nail Trump on is checking the mattress on his bed to see if he removed the "don't remove" tag.