(Newser) -
John McCain finally made it back on David Letterman's show, and he promptly issued two apologies—one to Dave and one to Joe the Plumber. In an appearance taped to air tonight, McCain apologized to Letterman for canceling a September appearance at the last minute. "I screwed up," he said. He also apologized to the now-famous Ohio plumber because he's been picked apart in the press, Politico notes. "Joe, if you're watching, I'm sorry," he said.
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