Alan Dershowitz, a Hillary supporter and Constitutional scholar, has said that even if the Trump Campaign "colluded" with Russian agents who had information about Hillary, it would have been perfectly legal. As long as Trump wasn't a party to a crime (break-Ins, thefts or voter fraud) no criminal activities occurred.  Simply talking to Russians and even actively planning an email dump is typical campaign activity.  Look at how NBC timed their bombshell release of Trump's foul mouthed rant on women in their wired up bus. They didn't release it while Trump was their star but held onto it until it could do maximum damage to his campaign.  Dirty? Yes.  Illegal? No. 
We are witnessing the media pulling out all stops to cripple and destroy the President who has called them out for the lying frauds they are.  BTW why hasn't there been a crime identified yet? Shouldn't there be a crime before an investigation of who done it?  Done what?