Election office volunteers of Jon Huntsman, the former ambassador to China, make telephone calls to voters to urge them to support Jon Huntsman in Manchester, New Hampshire, the U.S., on Jan. 10, 2012. A week after the Iowa caucuses which ended up in a virtual tie at the top between Mitt Romney and Rick Santorum, U.S. Republican presidential hopefuls kick off their second contest in New Hampshire on Tuesday. [Xinhua/Fang Zhe]