Between the Lines

Bill Greenblatt / UPI / LANDOV

Republican presidential candidate Rick Santorum speaks to supporters after winning the Missouri Primary during a rally in St. Charles, Missouri on February 7, 2012

Rick Santorum's sweep of GOP contests in Missouri, Minnesota and Colorado didn't win the former Pennsylvania Senator a single delegate under Republican rules, but it shook up the nomination fight big time ... Mitt Romney is still the heavy favorite, but with the spotlight on his weakness (he got far fewer votes in Colorado than when he won the state in 2008), things just got plenty interesting again ... The front runner from Massachusetts can't afford another significant loss without facing a whole new round of questions about his viability ... Newt Gingrich looks to make a comeback in Ohio's March...

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