The President is an un-indicted co-conspirator in crimes to influence the 2016 election.
Impeach now.
Congressional republicans still hold the majority, which means Mitch McConnell decides what the House of Representatives does and Mitch will never bring up articles of impeachment, much less lead his people to vote for it.
Even if they did impeach, the republicans still hold a majority in the Senate and would never vote to convict or remove from office. Felon? No problem, as long as we get to gut medicaid!
And despite the fact that there is solid proof the president committed a felony, he is apparently protected from criminal prosecution while he is still in office. They can't even indict him, much less impeach him.
Remember when he said he could shoot someone on Fifth Avenue? That's what we're seeing today. Any crime the President commits, up to and including a felony, is irrelevant as long as the republicans control Congress. He's untouchable while Mitch is in control. Voting them back into the minority is the only viable solution to this problem.
I'm still waiting for the official eruption. What's his possible defense here? "I'm not guilty of a felony just because I ordered my employee to commit a felony on my behalf! He pulled the trigger, not me!" Somehow I don't think Mueller is going to buy that one.
What other crimes can he admit while maintaining his innocence? How about "I directed Michael Flynn to disclose classified information to Russian spies during the campaign in exchange for their help hacking voting machines" or maybe "I asked Kushner to set up a secret back channel with Russian intelligence, but it was Kushner who walked into the Russian embasy, not me!" And let's not forget "I took tens of millions of dollars from Russian oligarchs to bail out my failing real estate deals, but it was the Russians who gave me the money. It's them you want, not me! I didn't give them anything in return, I just directed the republican party to ease the Russia sanctions. See, I'm totally innocent!"
Is this what collusion looks like? He conspired to commit a crime. He coordinated criminal activity by working with other criminals to commit criminal acts, up to and including personally directing how and when that criminal activity would go down. If that's not collusion, what is?
edited to add: you can substitute "Paul Ryan" for "Mitch McConnell" in this post, because I was being flaky.