CNNW Anderson Cooper 360 January 3, 2012
good evening, from cnn's election center because, yes, it has begun and it's an episode of survivor. at least that's how republican presidential candidate rick santorum described the iowa caucuses. here is the thing about iowa. no offense, iowa, you're really important but you're also small. only 2 million registered voters. 640,000 of them republicans. and if the 2008 caucuses were an indication of what's ahead for tomorrow, only about 100,000 of those republicans will actually go out on a cold january night to cast their votes. those who do, it only is a 50% success rate when it ac...