U.S. officials are casting doubt over the results of Iran's election, in which the government declared President Mahmoud Ahmadinejad the winner Saturday.
U.S. analysts find it "not credible" that challenger Mir Hossein Mousavi would have lost the balloting in his hometown or that a third candidate, Mehdi Karoubi, would have received less than 1 percent of the total vote, a senior U.S. officials told FOX News.