MIAMI, FL - MARCH 09:  Democratic presidential candidates Senator Bernie Sanders (D-VT) and Democratic presidential candidate Hillary Clinton shake hands before the Univision News and Washington Post Democratic Presidential Primary Debate on the Miami Dade Colleges Kendall Campus on March 9, 2016 in Miami, Florida. Voters in Florida will go to the polls March 15th for the state's primary.  (Photo by Joe Raedle/Getty Images)