In politics, there is support, and there is intensity of support. And heading into the 2012 election year, Republicans are ahead in the potentially crucial quest for intensity.

Support is simply an indicator of which candidate a voter prefers to win an election. Intensity is an indicator of how badly that voter wants the preferred outcome. It's a rough measure, but an important one, of how likely a voter is to actually show up on Election Day to cast a ballot.

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