Susan Rice

FILE - In this March 21, 2014, file photo National Security Adviser Susan Rice listens to reporters questions during a briefing in the Brady Press Briefing Room of the White House in Washington. Democratic presidential nominee Joe Biden is in the final stages of selecting his running mate. Among the contenders is Susan Rice, who worked closely with Biden in the Obama administration and regularly briefed him on pressing foreign policy matters when she served as national security adviser. (AP Photo/Manuel Balce Ceneta, File)