Democratic presidential hopeful former Vice President Joe Biden (L) and Sen. Bernie Sanders (I-Vt.) participate in the sixth Democratic primary debate of the 2020 presidential campaign season at Loyola Marymount University in Los Angeles, California, on Dec. 19, 2019. Frederic J. Brown/AFP via Getty Images
Former Secretary of State John Kerry defended Democratic presidential contender Joe Biden after the campaign of Sen. Bernie Sanders (I-Vt.) attacked the former vice president over his support for the Iraq War.
Sanders, 78, has regularly attacked Biden, 77, over his support as a senator for invading Iraq in 2003.
