As proof that he can successfully and humanely deport the estimated 11 million people living in the country illegally, Republican presidential contender Donald Trump often touts the efforts of the Eisenhower administration in the 1950s.

He did so again in this week’s Republican debate, saying “you don’t get nicer, you don’t get friendlier” than President Dwight D. Eisenhower. “They moved 1.5 million out,” the billionaire real estate mogul said. “We have no choice. We have no choice.”