(John Minchillo | AP file photo) Democratic presidential candidate Sen. Kamala Harris, D-Calif., left, Sen. Bernie Sanders, I-Vt., middle, and former Vice President Joe Biden talk following a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, 2019, in Westerville, Ohio. Kamala Harris endorsed Joe Biden on Sunday, March 8, 2020, saying she would "do everything in my power'' to help elect him.