BOISE, Idaho — Former Massachusetts Gov. Mitt Romney has won Idaho's 'Super Tuesday' Republican caucus.

Romney is likely to get all of Idaho's 32 delegates after besting rivals Ron Paul, Rick Santorum and Newt Gingrich.

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Romney coasted to victories in southern and eastern counties, including Bannock, Franklin, Power, Jerome, Twin Falls and Lemhi. The AP called the race before results were final in caucuses in Ada and Canyon, the two big population centers in the state.

GOP organizers estimated 68,000 Republicans turned out statewide, including 9,000 people in Ada County and some 4,500 each in neighboring Canyon County and eastern Idaho's Bonneville County.

The crush was so great in Ada, an extra 30 minutes were allowed for hundreds of people still waiting outside at the 7 p.m. cutoff to get into the Taco Bell Arena at Boise State University.