Simple: Trump lawyers will not be allowed to present evidence of voter fraud because the trial is not about VF, but about Trump’s inability to hold public office. “Evidence” of Trump (whatever Pelosi considers to be the evidence) inciting the “riots” will be presented, no doubt...
Somebody posted earlier that one of the items in the articles of impeachment was about President Trump making false claims of election fraud (haven’t read the actual articles myself). I’m not a lawyer, but that would seem to open the door pretty wide for the defense to present evidence that the claims were not false.
Might be awkward for them to try on the riots after the BLM-supporting founder of Insurgence USA videorecorded himself at the Green-Revolutionlike slaying of a woman in the Capitol outside Pelosi’s lounge, knowing that, according to his brother, the agitator John Earle Sullivan had 266 followers headed to DC for the event. We should be paying attention to every arrest to see who else is connected to him. Suddenly Pelosi doesn’t seem as interested in finding out who all was there anymore.