Hillary Clinton, Bill Clinton and daughter Chelsea attend "Caucus Night Victory Party" in Des Moines, Iowa

Former President Bill Clinton embraces his wife and former secretary of state and Senator Hillary Clinton, 2016 Democratic presidential candidate, as daughter Chelsea applauds, during a "Caucus Night Victory Party", February 1, 2016, in Des Moines, Iowa. Clinton, claiming a win over Vermont Sen. Bernie Sanders, finished in a dead heat in Iowa's first-in-the-nation caucuses. Photo by Mike Theiler/UPI