South Carolina GOP primary election voter exit polls show how Trump beat Haley

Former President Donald Trump continued his winning streak in the GOP presidential primary Saturday, notching a victory in South Carolina thanks again to his dominance among core Republican voters. Trump followed a similar path to victory to the ones he took in Iowa and New Hampshire earlier this year, earning majorities from nearly every key group in the South Carolina’s GOP primary electorate, according to NBC News exit poll results. Former U.N. Ambassador Nikki Haley, meanwhile, struggled to garner support beyond the moderates and independents in her home state. Here are four key…