when he says that trump wouldn’t win election without him, I wish people would respond that he is full of bullshit and trump alone would win anyway, pushing him to say more.
I believe that Trump may not have won without him. He weaponized twitter to push misinformation against the Dems and in favour of Trump. I don't know if the result of that can be quantified in such a way that we'd know for sure whether it changed the outcome, but it certainly had an impact.
Sue them for what? They are fully within their rights to run anti-abortion ads and reject pro-choice ads.