Wall St. Journal here:
It wasn’t immediately clear what the test—he called it “extreme vetting,” a phrase that didn’t appear in his prepared remarks—would include, but Mr. Trump suggested he would ban not only terrorist sympathizers but those who believe in Shariah law, don’t believe in the U.S. Constitution or “support bigotry and hatred.”
Shariah law is the legal system of Islam that governs public and private behavior.