I'm late to the party, but have a theory regarding POTUS' tweet stating that if no deal is done, it's "off to the races."
Maybe POTUS is referring to the fraud during the midterm house races; maybe he's using this as leverage to expose the newbies that were elected via fraud and that is what may be splitting the dims in the house? Maybe the leverage is that if he doesn't get a favorable deal, he's gonna spill the beans or worse on the ones that won their house seats by stealing the election.