Breitbart's anti-Semitic headline is a symptom of Trump's bigoted views
Republican U.S. presidential candidate Donald Trump delivers a foreign policy speech at the Mayflower Hotel in Washington, US April 27, 2016. (REUTERS/Kevin Lamarque)

By Jennifer Rubin Breitbart, the rightwing Web site that has served as a cheering section for Donald Trump's campaign (even going so far as to smear its own reporter, Michele Fields, who accused Trump campaign manager Corey Lewandowski of manhandling her), created a firestorm in social media Monday with this headline: "Bill Kristol: Republican Spoiler, Renegade…