I don't know how in depth this issue was covered in the national news, but it has been a big deal here in Ohio. Many poling places ran out of their Democratic ballots, because here a Republican can switch to a Democrat. They have to swear that they have indeed made said switch, but in reality the media has reported that many Republicans felt that if they voted for Clinton, then McCain would have a better chance of winning. As far as I know, none of the poling locations ran out of Republican ballots. There were moms waiting with two young kids for over an hour for a ballot, but they ended up having to leave before a ballot arrived. (Some just voted on the issues.) I guess it'll become another one of the "What ifs?" in U.S. political history, although a relatively minor blip on the political radar screen.
I am saddened but not shocked by this. Why am I not surprised? Because my very own very conservative parents have used this same tactic in the past. They live in Missouri where they have an open primary. A few years ago when Democratic Governor Bob Holden was running for re-election, they threw their votes to him in the primary because he had not been the finest of governors and stood a greater chance of being beaten in the general than his opponent. Their Rebublican golden boy, Matt Blunt, won in the general anyway, but this just goes to show how ethical the party that wraps itself in the Jesus' robe can be.