Said on the Senate floor today if he gets another attempt by the GOP to sneak a version of it through, which they tried again, he will do everything he can to slow it, and block it. Took out a whiteboard ala Katie Porter and laid out how long it will take to implement, how many agencies are involved and how what Trump is proposing is impossible and all the versions he's seen are fatally flawed and they are way too late to be trying to implement.
At one point he said they would have to postpone the election to have time to implement it and said if we try to do that every Republican in this room will pay the price for it.