"Why are we not moving forward with a Medicare-for-all single-payer program guaranteeing healthcare to all people, which will be much more cost-effective than what we presently have?" he asked Cooper.
The Religious Action Center, the Reform movement's policy wing, called for expanding health care coverage in response to the news.
Sanders reiterated his plan on CNN's "State of the Union" on Sunday, telling anchor Dana Bash: "Ideally, where we should be going is to join the rest of the industrialized the world and guarantee healthcare to all people as a right".
Sanders admits the reality of the situation though, which is that the current administration and Congress would never go for that.
"Right now we need to improve the Affordable Care Act and that means a public option", Sanders tweeted yesterday.
The senator acknowledged that such a bill would face political difficulties-Democrats didn't endorse single-payer even when they had a Congressional majority-but said such a streamlined system would address healthcare problems felt on both sides of the political aisle. "But insurance companies and Republican lawmakers say a government-run plan could drive private insurers out of business and eventually lead to a single-payer system run by the government". Premiums are too high.
Sanders also told reporters this weekend that he would consider legislation that would drop the Medicare age from 65 to 55.
It would deliver one public payer, no deductibles, no co-pays, lower costs, everyone in, nobody out, no more medical bankruptcies, no more deaths from lack of health insurance and free choice of doctors and hospitals.
"Well, you know, it's a goal".
Calls for such a system have been increasing among progressives, who demand that the Democratic Party counter the Republican effort to repeal the Affordable Care Act with a proposal that would provide affordable health care to all Americans.
Bernie Sanders has vowed to make opposing Donald Trump's proposed budget his next fight, following the collapse of the President's plan to repeal Obamacare. Let's deal with the greed of the pharmaceutical industry.
"The defeat of the disastrous Trump-Ryan health care bill is a major victory for working families and everyone who stood up in opposition", the Jewish former Democratic presidential candidate wrote on Twitter.