In post-election analyses, the 11-point drop in the president's support among 18- to 29-year-olds indicates that particular voting bloc is falling away from Barack Obama on major issues. ------- One polling trend that isn't going in Barack Obama's favor after the presidential election is the drop in his support among young voters. Even though it might not be as unbelievable as winning 100 percent of the vote in 59 Philadelphia precincts ─ and nine Cleveland precincts ─ an 11-point swing in support away from Obama is lifting some eyebrows on both sides of the political spectrum ... particularly because that...