EXETER, NH - FEBRUARY 02: Republican presidential candidate Sen. Marco Rubio (R-FL) holds a campaign rally in the Exeter Town Hall February 2, 2016 in Exeter, New Hampshire. Rubio is campaigning in New Hampshire the day after placing third in Monday's Iowa caucuses, finishing one percentage point behind Donald Trump and four points behind the leader, Sen. Ted Cruz (R-TX). (Photo by Chip Somodevilla/Getty Images)
