What's at stake on Super Tuesday?

JACKSONVILLE, FL - JANUARY 26: Republican presidential candidates (L-R) former U.S. Sen. Rick Santorum, former Speaker of the House Newt Gingrich (R-GA), former Massachusetts Gov. Mitt Romney and U.S. Rep. Ron Paul (R-TX) participate in a debate moderated by CNN's Wolf Blitzer (R) at the University North Florida on January 26, 2012 in Jacksonville, Florida. The debate is the last one before the Florida primaries January 31st. (Photo by Joe Raedle/Getty Images)
JACKSONVILLE, FL - JANUARY 26: Republican presidential candidates (L-R) former U.S. Sen. Rick Santorum, former Speaker of the House Newt Gingrich (R-GA), former Massachusetts Gov. Mitt Romney and U.S. Rep. Ron Paul (R-TX) participate in a debate moderated by CNN's Wolf Blitzer (R) at the University North Florida on January 26, 2012 in Jacksonville, Florida. The debate is the last one before the Florida primaries January 31st. (Photo by Joe Raedle/Getty Images)

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    What's at stake on Super Tuesday?

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