Exit polls from the nation’s biggest Republican primaries show impressive majority support for Trump’s proposal. In the latest example, in Pennsylvania Tuesday, 69 percent of GOP voters said they support “temporarily banning Muslims who are not U.S. citizens from entering the U.S.” In New York last week, the number was 68 percent.

In Wisconsin, 69 percent supported Trump’s idea. In Florida, 64 percent. Georgia, 68 percent. Ohio, 65 percent. Michigan, 63 percent. New Hampshire, 65 percent. Texas, 67 percent.

Huge majorities across the country in states won by Trump and states won by Ted Cruz — and even the one state won by John Kasich. If those exit polls, measuring the opinions of tens of thousands of people, are correct, the temporary foreign Muslim ban has become a Republican staple.