An Oklahoma congressional candidate has apologized after he was caught taking his opponent’s campaign signs from a street corner -- just before the state’s primary election. Tom Guild, who bills himself as a progressive Democrat vying for Oklahoma’s 5th congressional district seat, was accused in a Facebook post of taking the signs of Kendra Horn, also a Democratic candidate. The Facebook post, which has been shared more than 100 times, included photos of Guild allegedly caught in the act. “Sometimes in the heat and rush of the campaign, mistakes are made,” Guild said in a statement to The Oklahoman. “On reflection, removing some...