The principal policy difference between Hillary Clinton and Bernie Sanders is over health care -- specifically, health care financing. Bernie favors the adoption of a "single payer" health care system, which he (and many before him) refer to as "Medicare for All." Hillary doesn't disagree about the desirability of a single payer system, but contends that it isn't feasible, politically or economically. She's right, at least for now. There is a way to bring about single payer system, but Democrats can't do that by themselves. Republicans, or at least a substantial proportion of Republicans, would have to agree. And there is a way that might happen.