The Democratic presidential candidates remain deeply divided on how to expand healthcare to the tens of millions of Americans who are uninsured or underinsured. Senators Bernie Sanders and Elizabeth Warren have both pushed for abolishing private health insurance and establishing a Medicare for All system. Their rivals have pushed a number of different, more incremental approaches. During the first night of the latest debates, Sanders pointed out that the country has taken sweeping action before to expand health coverage to millions of Americans, referring to the 50th anniversary of the creation of Medicare and Medicaid. Democracy Now! speaks with Janet Golden, professor emerita at Rutgers University-Camden and a historian of U.S. medicine, and Wendell Potter, a former health insurance executive.