Byron York: Trump and Muslims, by the numbers

Among the many criticisms of Donald Trump’s ban-Muslim-immigration proposal is that it is based on bogus data. In his statement announcing the proposal, Trump cited a survey from Frank Gaffney’s Center for Security Policy showing that “25 percent of [Muslims] polled agreed that violence against Americans here in the United States is justified as a part of the global jihad” and also that 51 percent “agreed that Muslims in America should have the choice of being governed according to sharia.”

Critics attacked the Gaffney poll as unreliable. “Donald Trump’s call to ban Muslim immigrants is based on a very shoddy poll,” read a recent Washington Post headline, reflecting a widely-held view.