A couple of nice little scandals have erupted out of the Rev. Rick forum. One is that McCain's stirring "Cross in the Dirt" anecdote might have been stolen from the late Russian novelist Aleksandr Solzhenitsyn, of whom McCain is a declared and knowledgeable fan. See here and here.
And there was something fishy about Rev. Warren's claim that McCain was in a "cone of silence" during Obama's turn and couldn't hear the questions he was about to be asked. There is apparently evidence McCain had the questions in advance. See here and here.