Good luck with that. He'll be impeached in the House, with all Republicans and a handful of Democrats voting against, but the chance of a supermajority in the Senate is about the same as aliens blowing up the White House on election day. He, Fox News and Vlad on Facebook et al will use the failure to convict to fire up his base and off we all go merrily into the 2020 vote.
I fear the Dems will pick Warren, or someone similarly appealing to the echo chamber social media bubbles, ignoring that in the vastly important battleground purple states a lefty Dem is about as welcome as the tertiary syphilis working its way through Trump's tiny brain.
Trump will get his due only when he's voted out. And for that the Dems need to battle not just Trump himself on election day, but their own inability to do the sensible thing, voter suppression, gerrymandering, election interference, and the fetid cesspit of lies and propaganda propagated by the Trump campaign and related malignant cultists and greedy, cynical opportunists.
I predict four more years of an unfettered Trump, unless his health takes him out first, and then we'll have Pence. In which case those with a supernatural inclination might get some joy from imagining Trump burning on the everlasting bonfire, or fertilizing daffodils, for the rest of us.