Republican White House hopefuls vying in three presidential votes were unlikely Tuesday to knock Mitt Romney off his front-runner perch, despite a surge from conservative rival Rick Santorum. Caucuses were being held in Colorado and Minnesota, with a third contest in Missouri, as the candidates eye a long slog through February, in the battle to be crowned the Republican Party's 2012 presidential nominee.
Republican White House hopefuls vying in three presidential votes were unlikely Tuesday to knock Mitt Romney off his front-runner perch, despite a surge from conservative rival Rick Santorum.
Caucuses were being held in Colorado and Minnesota, with a third contest in Missouri, as the candidates eye a long slog through February, in the battle to be crowned the Republican Party's 2012 presidential nominee.
