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The Iowa Caucuses Are Known for Surprises—Here Are 3 of the Biggest Upsets -
CNN Drops Rick Santorum Over Comments About Native Americans -
Do Workers Believe Immigrants Steal Their Jobs? -
2016 GOP Hopefuls Court Critical Iowa Support -
2016 Presidential Candidates Woo Middle Class in Iowa -
Immigration Dangerous Topic as GOP Kicks Off Presidential Election Season in Iowa -
Santorum Endorses Romney in Email -
Rick Santorum Bows Out of GOP Race -
Santorum Solid Win in Louisiana But Uphill Ahead -
Santorum Wins Alabama, Mississippi -
Romney Wins Ohio but GOP Race Continues On -
Romney and Santorum in Tight Contest -
National Poll Shows Santorum with Commanding Lead -
Romney Campaigns in Home State of Michigan -
Romney Tightens GOP Hold as Rivals Hang On -
Iowa Over, Now It’s On to New Hampshire