GOP focus turns to Missouri, Puerto Rico, Illinois
SAN JUAN, Puerto Rico (AP) — The Republican presidential contest rumbled into Puerto Rico Wednesday as a two-man race, with Rick Santorum nipping more aggressively at Mitt Romney's heels after again frustrating the front-runner in Southern primaries.
Former House Speaker Newt Gingrich, with little to show for pinning his hopes on the South, nonetheless vowed to stay in. His deputy campaign manager outlined a strategy aimed at denying Romney a clean win in the delegate race and making Gingrich's case along the way to the Republican convention in August.
But after taking Tuesday's primaries in Alabama and Mississippi, Santorum called for the party's faithful to unite behind him alone.
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