This avalanche of horrifying news makes McConnell clearly look like he's part of the corruption if he fails to allow evidence in the impeachment trial.
Every senator who refuses to allow evidence looks complicit with what sounds like a hit that was being prepared on the US ambassador to Ukraine by the US president's gang of thugs. You can't quietly conceal mafia behaviour.
So...
You don't take on Pelosi. She is smarter than McConnell. She knew what he was going to do. She waited until he laid out his position. She marshalled the evidence. Then she released it. Absolute nuclear bomb.