A tattoo of US Republican presidential hopeful Donald Trump is seen on the arm of Anthony Borbell during a rally March 14, 2016 in Vienna Center, Ohio.
White House hopefuls face off in crucial primaries in five states (Florida, Illinois, Missouri, North Carolina and Ohio) that could be decisive, especially for Republican frontrunner Donald Trump.  / AFP / Brendan Smialowski        (Photo credit should read BRENDAN SMIALOWSKI/AFP via Getty Images)