Most striking has been Trump’s aim at Muslims in the United States. He’s been widely denounced for claiming that people in New Jersey — a state with “large Arab populations,” he said — cheered after the terrorist attacks of September 11, 2001. That, coupled with his seeming endorsement of a national registry to track Muslims in the country, has sparked a new level of condemnation from conservatives already on edge about Trump’s endurance.

Source: Why some conservatives say Donald Trump’s talk is fascist –