Senator Ted Cruz, a Republican from Texas and 2016 presidential candidate, left, appears on stage with his wife Heidi Cruz, right, and daughter Caroline Cruz during his campaign's caucus night celebration at the Elwell Center on the Iowa State Fairgrounds in Des Moines, Iowa, U.S., on Monday, Feb. 1, 2016. Cruz won the Iowa Republican caucuses in an upset over billionaire Donald Trump, while Democrat Hillary Clinton was clinging to the narrowest edge over Senator Bernie Sanders of Vermont. Photographer: Luke Sharrett/Bloomberg via Getty Images
