BOISE, Idaho (AP) — Idaho voters are getting ready to pick the next U.S. President — and if history is any guide, Gem State voters will throw their support behind Republican Mitt Romney. Idaho is among the nation's reddest states, and its four electoral votes haven't been awarded to a Democrat since 1964. Romney is the clear favorite for several reasons. His candidacy has been championed by some of the state's GOP stalwarts, including Gov. C.L. "Butch" Otter, who is Romney's state campaign chairman. The former Massachusetts governor emerged as the winner in Idaho's first-ever Republican caucus in March and he's a member of The Church of Jesus Christ Latter-day Saints — a religion shared by a quarter of Idaho's population. Romney has also held fundraisers this year in Boise, Ketchum and Idaho Falls.