Fox News projects Rick Santorum the winner of today's Republican presidential primary in Mississippi.  The call is made with 88 percent of the precincts reporting: Rick Santorum has 32.9 percent of the vote, Newt Gingrich 31.5 percent, Mitt Romney 30.2 percent, and Ron Paul 4.4 percent. Santorum is also projected to win today's other Southern primary in Alabama, while Newt Gingrich likewise came in second in that contest and Romney in third.