What Happened In Michigan?

MSNBC's super-genius pollsters had McCain up 35%-29% over Romney Tuesday morning. Tuesday night, Mitt Romney stomped McCain by 9%--a 15% swing.

Another election, another lousy performance by media pollsters.

How did Romney do it? More Republicans showed up, for one thing. Plus, the Michigan election was about the economy (Romney's issue), not the war (McCain's).

Jay Cost breaks it all down for you at RealClearPolitics, and he's also one of our guests this morning on 96.9 WTKK.