Trump warns against Syrian refugees: 'A lot of those people are ISIS'

Donald TrumpDonald John TrumpTrump's approval holding steady in poll, despite shutdown drama Trump huddles with Pence, Mulvaney, Kushner as shutdown hits one week Trump jokingly congratulated acting EPA chief on not acting like Pruitt: report MORE on Wednesday night said that “a lot” of the Syrian refugees coming to the U.S. are members of the Islamic State in Iraq and Syria (ISIS).

During an interview on Fox News's “O’Reilly Factor,” the presumptive GOP presidential nominee blasted his Democratic rival, Hillary ClintonHillary Diane Rodham ClintonTrump's approval holding steady in poll, despite shutdown drama House GOP probe into FBI, DOJ comes to an end Dershowitz: 'It's been harder for me to get on anti-Trump networks' like CNN MORE, and President Obama for not doing enough to stop the terrorist group in its infancy, when it could have been “wiped out quickly and effectively.”

“Now it’s a very large group of people and its only getting bigger and if [Clinton] gets in, it will be massive and we won’t even have a country anymore,” he said. “We will be afraid to walk outside.” 

“One other thing,” Trump added, “they are letting tens of thousands of people come in from Syria and nobody knows who these people are and a lot of those people are ISIS.”

Trump argued that Clinton is not “tough enough” to defeat ISIS.

“She’ll never get tougher,” he said. “It’s not going to happen.”