it boils down to Trump's Cult thinks his actions aren't so bad. they know his actions are wrong, but they hate the Left for going after him so hard, that they want it excused.
if it was me, I would toss Guiliani in prison and "reprimand" Trump. and get on with working. nothing is solved by the impeachment process. Trump will not be convicted, regardless of actual bribery, quid pro quo, quid pro Joe, or anything else.