This very well could be their last shot. No ammo after this, right? What else is there?
Its the attempt to overthrow a pres to cover their asses for all the crimes they committed to stop him being elected. They were in on it from the beginning when he decided to run or they covered for others after the fact. This vote (assuming they are guilty and they covering their asses) is an attempt to usurp democracy. The ultimate betrayal.