Mitch will make the Democrats vote on a bill to increase to $2000 but also repeal section 230 and start an investigation into voter fraud.
If the Democrats reject this cause they don't want any investigation into voter fraud or to lose 230, then they look bad for rejecting the $2000 and look guilty for blocking the investigation. If they accept it then Trump gets 230 repealed and voter investigation whatever that leads to.
The most important thing is it shows GOP is likely behind Trump. This is all part of the plan.
I do have to say there are a lot of snowflakes out there (and here) Politics is a dirty game that works both ways. Trump is no dummy.