Bob Shackelford, WTSP 7:20 p.m. EDT September 10, 2015

Immigration and undocumented immigrants are still among the biggest issues of the Republican presidential candidates.

Frontrunner Donald Trump has advocated building a wall or fence along the border of Mexico to keep undocumented immigrants out. And according to one poll, 57% of likely voters believe a border should be built along the border.

One person who doesn't agree is Jorge Ramos, the news anchor from Univision and Fusion. On Fox News' "The O'Reilly Factor," he said it would be a waste of billions of dollars.

"Almost 40 percent of all immigrants come by plane and they overstay their visas," said Ramos.

PunditFact quickly found that part of Ramos' claim was correct. The Immigration and Naturalization Service estimates 41% of undocumented immigrants are what they consider "overstays" -- people who have come to the United States legally but have overstayed their visas. The part about them coming by plane was more difficult to prove.

"We don't really have a good handle on necessarily how they're getting into the country," said PunditFact editor Aaron Sharockman. "The concept that 40% of them actually flying in seems way too high. Most of the experts we talked to said it would be much less. But they also said quite frankly we don't have a lot of good data. So it's really Jorge Ramos picking a number out of thin air in this case.

Since Ramos claimed that 40% of undocumented immigrants had overstayed their visas was correct, but how they arrived here was speculation, PunditFact rates his claim HALF TRUE.

http://www.wtsp.com/story/news/polit...laim/72019802/