Donald J. Trump continues to lead the Republican primary field in South Carolina. He's also the candidate the highest number of voters would want to be stuck in an elevator with. Ben Carson, meanwhile, is widely considered a good person to loan your car to, even among supporters of other candidates. An automated telephone poll of 416 voters conducted exclusively for Free Times by Crantford Research attempts to tease out some key electoral forces as the state heads into its Feb. 20 GOP primary. It was the first poll conducted since the Feb. 13 GOP debate in Greenville. Asked who...