So Karl Rove was entitled to "THE math." No one seems to be wondering exactly what that meant. Personally I think it was the Massive Authoritarian Totalitarian Helper, and now we know the nickname of the Far Right's election machine.
But I think there's really more to it than that. Consider the following: it has been conclusively and repeatedly shown that the current generation of electronic voting machines are susceptible to untraceable tampering. This may be getting into tinfoil-hat territory, but let's suppose, just for the sake of argument, that there's a hack in the tabulating software that flips, say, every twentieth Democratic vote to a Republican one. That extra 5% margin would probably be quite comforting to Karl and Co. Perhaps comforting enough that their calculations would show fewer seats changing hands.
The upshot of this would go a long way toward explaining Ken Mehlman's shell-shocked look on Wednesday. They were expecting closer results, results close enough to make their 5% head start all they needed, but the vote was lopsided enough that they still took a thumpin'.
Call me the Walrus, because the time has come to require accountability and auditability in our election systems. If that means we have to pay Diebold for the ownership of their proprietary software, so it can be open-sourced and examined, so be it. I'd really love to be proven dead wrong about the scenario above, but until the software source code has been examined, the question can't be proven one way or the other.