How the Butler shooting changed Donald Trump's campaign

NEW YORK (AP) — Donald Trump was onstage at a rally on Long Island last month, talking about taxes, when he appeared momentarily spooked by something he had spotted over his shoulder.

“I thought this was a wise guy coming up,” he explained, joking that he was getting his elbow ready to fight back.

“You know I got a little bit of a yip problem here, right?” he added to laughs, using a term familiar to golf aficionados to describe a phenomenon once blamed on performance anxiety where players suddenly lose the ability to make easy shots. “I was all ready to start duking it out."

It was a fleeting moment passed off as a joke. But as he returns to Butler, Pennsylvania, on Saturday for a rally at the site where a gunman opened fire in July, grazing his ear with a bullet, the scare underscores the lasting fallout for the candidate and his campaign even as much of the national attention has shifted to other crises.