"We should only admit into this country those who share our values and respect our people,” he said. “The time is overdue to develop a new screening test for the threats we face today. I call it extreme vetting. I call it extreme, extreme vetting.”
It marks an expansion of his December call for a "total and complete shutdown" of Muslim immigration to the U.S..
Perdue, who enthusiastically endorsed Trump in June, said he struggles with the New York businessman's choice of words, such as his feud with the family of a slain U.S. Muslim soldier or his assertion that President Barack Obama is the founder of the Islamic State terror group.
But Perdue maintained his support for Trump over Democrat Hillary Clinton, saying he approached the decision like he would when he was a Fortune 500 executive.
“My answer is it’s a decision between two alternatives and when you’re looking at the alternative, it’s an easy decision,” he said. “We’ve got eight years of failure and I’m picking the high ground, because she’s not offering any solutions.”