2.
Part of the answer to the question of why nor do it at the Senate trial was provided by the Democrats themselves.
Did anybody else notice that the Democrats kept challenging the Trump team to bring up the validity of the election?
They very carefully included overt statements regarding Trump's words on the matter in each and every phase of the trial thus far.
And election fraud/integrity was pretty much the ONLY topic that Trump's lawyers did not address categorically and convincingly.
@YMKYMFOI they were almost too careful not in engage, thought that interesting