(Reuters) - U.S. Democratic Representative Barney Frank wed his longtime partner, James Ready, on Saturday, becoming the first sitting congressman to enter into a same-sex marriage. Massachusetts Governor Deval Patrick officiated the ceremony and added some levity by saying Frank, 72, and Ready, 42, had vowed to love each other through Democratic and Republican administrations alike, and even through appearances on Fox News, according to Al Green, a Democratic congressman from Texas. "Barney was beaming," said Green, who attended the ceremony. He added that Frank, a champion of gay rights and the sweeping reform of Wall Street, shed a tear...