Former Vice President Joe Biden, left, and Sen. Bernie Sanders, I-Vt., right, greet one another before they participate in a Democratic presidential primary debate at CNN Studios i...
Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks to reporters in Burlington, Vermont.
Democratic presidential candidate Sen. Bernie Sanders, I-Vt., accompanied by his wife Jane O'Meara Sanders, arrives for a primary night election rally as the crowd cheers in Essex ...
Democratic presidential candidate Sen. Elizabeth Warren, D-Mass., left, speaks to Sen. Bernie Sanders, I-Vt., right as former Vice President Joe Biden watches during a Democratic p...
Democratic presidential candidate Sen. Kamala Harris, D-Calif., Sen. Bernie Sanders, I-Vt., center, and former Vice President Joe Biden all speak at the same time during a Democrat...
From left, Rep. Tulsi Gabbard, D-Hawaii, businessman Tom Steyer, Sen. Cory Booker, D-N.J., Sen. Kamala Harris, D-Calif., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden...
