On "The O'Reilly Factor" tonight, Ann Coulter said that Donald Trump will continue to do well in the polls as long as he keeps talking about immigration.

"The voters keep saying, 'We don't want any more immigration,'" Coulter said. "That's why Trump is so popular. So pick it up, Republicans."

She explained that halting illegal immigration would help solve other key issues such as the economy and national security.

"Don't make terrorists citizens through immigration, and we'll have a lot less of a national security problem," Coulter said, pointing to the attacks at the Boston Marathon and in Chattanooga.

"This is a Republican Party being run for the business interests in America, not for the people," Coulter said. "This is why people are voting for Trump, and it doesn't matter what he says other than that."

"He has an army behind him."

Watch more from Coulter above.

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