This says a lot about political bases, too. I don't think that many people really see Oregon going Republican or Missouri Democratic in a tied election. I imagine it's just that the 2004 Bush voters in Missouri are more likely to be angry than in Oregon.
Obviously also some economics-related zaniness going on here too.
Some of Bush's worst numbers are in Missouri. I think it has a real chance of turning. But alternatively, I think Oregon could switch, too. I know it's crazy liberal but Bush actually got closer in '04 than 2000. That may or may not be a trend. On my map if Oregon and Missouri switched the Dems would still win. But if the GOP holds MO and takes OR they win...