Sens. Elizabeth Warren (MA) and Bernie Sanders (VT) defended Medicare for All during the sixth Democratic primary debate on Tuesday (Oct. 15), arguing that it is the best way to expand coverage to all Americans, despite its costs, while moderate candidates argued for a public option and otherwise building on the Affordable Care Act. Meanwhile, Sens. Kamala Harris (CA) and Amy Klobuchar tried to change the subject to other health care policy issues, such as reproductive rights, opioid addiction and...