Imagine that Chris Matthews was interviewing the former head of the Republican Congressional Campaign Committee, someone who helped engineer the election of a Republican House member after the incumbent Dem had been caught in a sex scandal. Now imagine that same Republican was currently stuck in a sex scandal of his own, and just this afternoon a credible report emerged that he might drop out of the race. What are the odds Matthews wouldn't have raised the new scandal with the former RCCC chairman? About as good as Keith Olbermann suddenly endorsing McCain-Palin after tonight's debate, you say? Agreed. Yet...