President Obama has many issues on his mind, but Sarah Palin isn't one of them. In a brief clip of his interview with Barbara Walters shown on "Good Morning America" Wednesday, the President shrugged of a question asking whether he thought he could beat the Tea Party darling in the 2012 election. "I don't speculate on what's going to happen two years from now," Obama said. When Walters chided the President for not answering the question, he smiled and said, "What I'm saying is I don't think about Sarah Palin." Last week, Palin told Walters she thought she could...