Donald Trump's call to ban Muslim immigrants is based on a very shoddy poll

Philip Bump
The Washington Post
December 7, 2015

Quote
... The Center for Security Policy is an organization run by Frank Gaffney, who is identified as an anti-Muslim extremist by the Southern Poverty Law Center. The survey Trump cites was conducted earlier this year on behalf of the organization ...
Full article

I have unbridled contempt for the SPLC, however, I know nothing about the Center for Security Policy, so I can neither approve of them nor condemn them.