Rick Santorum says the real race starts now as GOP presidential candidates look to topple Mitt Romney in upcoming states of Minnesota, Colorado and Maine.

Romney Wins Nevada Caucuses

Nevada Caucuses Suffer Low Turnout, Surly Confrontations

OPINION: The Ron Paul Phenomenon

Track the Nevada Caucuses

GOP Candidates Stake Claim in Super Bowl Turnout

Husband of woman missing since 2009 is killed in home blast after child safety workers dropped off two sons

Home of Missing Maine Toddler Hit By Vandals, Police Say

Father pleads for return of daughter, 18, who cops say was abducted from Alaska coffee shop where she works

Home of Missing Maine Toddler Hit By Vandals, Police Say

Workers, including Transportation Secretary's son, above, will be tried for allegedly receiving funds illegally

Egypt's Mubarak to Be Moved to Prison for First Time

Attackers Blow Up Gas Pipeline in Egypt

Sailors receive general discharges after sailor was 'choked out' on board the USS Bonhomme Richard

VIDEO: Sailors Discharged Over Hazing Allegations

US Army: Brigadier General Dies in Afghanistan