taxes would have to go up. many people might pay the same or less. sick people would probably pay less. we've had a bunch of private estimates about what this might cost and they've been argued by people on all sides. one of the interesting things is now with the democratic majority in the house they've asked the congressional budget office to do an estimate about what this might cost and how it might work and i think we'll all be very interested to see that when they finish it which will be in a couple of months. >> senator harris was a cosponsor of the bernie sanders's medicare for all bill he introduced a year and a half ago and he proposed for paying for it as follows, with a 7.5% payroll tax on employers, a 4% individual income tax and higher taxes on the wealthy. does that math add up? >> that's what the congressional budget office is going to tell us. a number of people have tried to estimate that and there have been arguments about it.