AdvertisementAnalysis7 Policy Questions Ahead Of The 1st Democratic Presidential DebatesJune 25, 2019Danielle KurtzlebenfacebookEmailSens. Cory Booker and Kirsten Gillibrand are among the presidential candidates to back Sen. Bernie Sanders' "Medicare-for-all" legislation, but even some Democrats who co-sponsored it have welcomed other policies. (CQ-Roll Call/Getty Images)