affordable care act. that will strip millions and millions and millions of people of their health insurance. >> that leaves out some pretty important context about sanders' plan. most importantly, perhaps, while people would lose their current insurance under a single-payer system if a single-payer system was passed and signed, everyone would then have government-run insurance to replace it. this morning, hillary clinton didn't back away, arguing he wanted to rip up obamacare as we know it. >> for example, we have a difference on health care. i want to build on the affordable care act. you've got to make some changes, because we have to improve it. he's been talking very generally about a single-payer system. he's introduced legislation nine times that have laid out a very specific plan to take everybody's health care and roll it into a great big bundle and hand it to the states. but my view is, we shouldn't be ripping up obamacare and starting over. we should be building on it. >> hours later, the clinton