FILE – In this July 30, 2019 file photo, Sen. Bernie Sanders, I-Vt., and Sen. Elizabeth Warren, …

Sen. Bernie Sanders, I-Vt., and Sen. Elizabeth Warren, D-Mass., embrace after the first of two ...

Sen. Bernie Sanders, I-Vt., and Sen. Elizabeth Warren, D-Mass., embrace after the first of two Democratic presidential primary debates hosted by CNN in the Fox Theatre in Detroit in July 2019. (AP Photo/Paul Sancya)