Former Massachusetts Governor Mitt Romney has won the Maine caucus.

In a statement issued by Romney Saturday night, the Republican presidential candidate was thankful for Maine's support.

"Tonight, they have made their voice known and have endorsed our conservative vision for a stronger America. Like many Americans, the people of Maine are tired of Washington promises made but broken," the statement said.

The win in Maine adds to the other states Romney has won in the 2008 election cycle thus far: Wyoming, Michigan, and Nevada.

Romney's main competitor in the upcoming Super Tuesday elections is Senator John McCain of Arizona.

Despite gaining the endorsements of both of Maine's senators, Susan Collins and Olympia Snowe, McCain placed a distant second in the state's caucus.

Romney has been arguing that he is the true conservative running on the Republican side by saying he'll lower taxes and end illegal immigration, while McCain has been making an effort to gain support among conservatives by touting his military experience and his position on the war in Iraq.

National polls currently show McCain as the front-runner, with Romney in second place, and former Arkansas Governor Mike Huckabee in third place.