Rick Santorum has earned his third victory of the night in the North Dakota caucuses, according to the AP.
Ron Paul had hoped to post his first win in the Republican presidential race with a strong grass-roots effort in the state, but was trailing Santorum in early returns, with Mitt Romney in third place.
No winner has been declared in Idaho, Alaska or the battleground state of Ohio, where Santorum and Romney were locked in a battle that was still too close to call.