Hillary Clinton tried to bring up Obama’s “bitter” controversy again this morning in a speech in Pittsburgh sponsored by the Alliance for American Manufacturing. Apparently, by the time she said, “I know that many of you, like me were disappointed by recent remarks that he made,” the crowd was groaning. When she added, “I am well aware that at a fundraiser in San Francisco, he said some things that many people in Pennsylvania and beyond Pennsylvania have found offensive,” the union members on hand were even less receptive. Are people tired of this flap already?