Moscow Mitch is making a mistake.
He's pretty much rigging the impeachment trial so that it will be a farcical rush job--a grand total of one day for each side to present their arguments. No witnesses, and no testimony.
For reference, in the Clinton impeachment trial, that process took several weeks. Moscow Mitch has been repeatedly saying that he would order the Senate to follow the procedures employed in that earlier trial. Except, I guess, when that proves inconvenient.
There's some question of whether the final votes will be open to the public or secret. Mitch is concerned about vulnerable Republican senators being targeted as Trump lackeys if they publicly voted for acquittal. Therefore, he may call for a secret vote--in the best traditions of an open, free, and fair democracy!
Mitch, though, is making a HUGE strategic error. He should let the proceedings be fair and impartial, allow both sides to present their cases, and not set ridiculously short time limits. He knows, as does everyone else, that the Trump traitors will vote to acquit. The Orange Asshole is in no danger. Therefore, why not conduct an ostensibly fair trial? Trump will crow, "EXONERATED!!!" after the Trump-Nazi senators vote to acquit, so why not make that more believable by sticking to a fair set of rules? It won't affect the ultimate outcome either way. This way, Mitch is just giving the Democrats ammo--something I think even our asshole Trumpers would object to!