calls. without mccain in the senate, the senate lacks the votes to even be able to debate the bill. dr. sanjay gupta suggests that mccain's condition is fairly serious. what happens if the arizona senator is out for longer than a week. >> it's going to make life a lot more difficult for senate majority leader mitch mcconnell, jake. that's because right now he is holding onto 50 republican votes to even get this bill to the floor to begin debate. and the longer that this debate goes on behind closed doors, the more difficult it's going to be to keep those 50 senators intact at this point. there are two republicans who have said that they can't vote for the bill in its current form or even vote for the motion to proceed to get it to the floor. many of these senators remain undecided because there has yet to be a score from the congressional budget office, and exactly the impact this bill will have on insurance coverage numbers and exactly how much it's going to cost. but even the president understands how important john mccain's role is in this entire