Rick Santorum may have won more primaries but the Republican National Committee's current delegate count shows former House Speaker Newt Gingrich has more bound delegates than Mr. Santorum in the race for the party's presidential nomination. Frontrunner Mitt Romney has earned 339 delegates to the August nominating convention in Tampa, Fla., or more than the rest of the field combined, according to a chart the RNC sent to its members on Thursday. Mr. Gingrich is second with 107 delegates, topping Mr. Santorum's 95 delegates and the 22 delegates pledged to Rep. Ron Paul of Texas. Winning the nomination will take...