The battle for the GOP presidential nomination seems to be far from over. We took a look back at the primary race starting in Iowa running through last Tuesday's contests in Alabama, Hawaii, and Mississippi.

As each candidate has had his turn in the spotlight -- whether it was Santorum’s win in Iowa, Romney’s in New Hampshire, Gingrich’s in South Carolina, or Obama’s State of the Union address -- each event corresponded with a spike in nationwide search interest. In some cases, a rise in searches preceded a candidate’s win in a primary state (we recently showed Santorum leading the pack in Alabama and Mississippi searches).

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