AdvertisementSeveral Democrats Eyeing A Presidential Run Embrace 'Medicare-For-All'January 30, 2019Alison KodjakfacebookEmailSen. Kamala Harris, D-Calif., at an Oakland, Calif., campaign rally this week. Harris says she backs a single-payer health system, but she hasn't yet offered details on how she would finance that plan. (Mason Trinca/Getty Images)