Lisa Lerer

Hillary Clinton sailed to a commanding victory over Bernie Sanders in Saturday's South Carolina primary, putting her in a strong position as the race barrels toward Super Tuesday.

Hillary Rodham Clinton turned an 11-hour congressional grilling into a campaign call to action on foreign policy, using a make-or-break appearance before the Republican-led Benghazi committee to display a commanding, presidential presence under a barrage of questions.

Hillary Rodham Clinton and her aides at the State Department were acutely aware of the need to protect sensitive information when discussing international affairs over email and other forms of unsecure electronic communication, according to the latest batch of messages released by the agency from Clinton's tenure as secretary of state.

White House chief of staff Rahm Emanuel requested Clinton's email address on Sept. 5, 2009, according to one of some 3,000 pages of correspondence released by the State Department on Tuesday evening.

Hillary Rodham Clinton jumped back into presidential politics on Sunday, making a much-awaited announcement she will again seek the White House with a promise to serve as the "champion" of everyday Americans.