A chorus of boos began cascading down from the auditorium.

"I’m just saying. He’s going to have to change the color of his 'sox,' " the president continued, as the audience laughed. "I didn’t think I’d get any boos out of here, but I guess I shouldn’t have brought up baseball. I understand. My mistake. You've got to know your crowd."

A member of the audience then called out, "We still love you," drawing more laughter and applause from the assembled crowd.