The Vichy Republicans are totally cowed at this juncture and I don’t see even one GOP Senator with enough backbone to vote to convict, let alone 20. And the 20 assumes every one of the 47 Democrats votes guilty, even Joe Manchin who is DINO if there ever was one.
What would Mueller’s report have to prove to change those closed little minds? Frankly, Trumps boast about shooting someone on Fifth Avenue seems to apply to the GOP members of the Senate. He looks bullet proof there.
IMO, the House Democrats instead of voting to impeach (not that Trump doesn’t deserve it), should put forth legislation to protect healthcare, the environment, voting rights, etc. As the Senate swats each one of those popular items down, the Democrats will gain issues for the 2020 election.