A lot of wishful thinking these last 2 days. I would love nothing more than for him to quit before his first term is up. But I would bet against if I had access to Ladbrokes.
As for resigning...
I don't think a man who puts his name everywhere in giant gold letters is going to resign in disgrace. He's going to deny, and fight, and never stop and who is going to stop him?
As for impeachment....
As constituted, the GOP will
never impeach him. Never. It's not going to happen. We would be very lucky to get a formal reprimand of him from them.
Even if there were massive Dem voter interest going into the 2018 mid-terms, the district gerrymandering will still be in place. It's going to be hard enough to get a majority in the House to get the impeachment going.
Then you need 2/3 of the Senate to convict, and typically only 1/3 of the Senate is up for grabs in any given election year.