Why AP called Vermont GOP primary for Haley and how Trump swept other contests: Race calls explained
WASHINGTON (AP) — The Associated Press was able to declare former United Nations Ambassador Nikki Haley the winner of the Vermont Republican presidential primary based on vote returns that indicated she had opened a lead that former President Donald Trump would be unable to overcome. But AP called a string of Super Tuesday contests for the former president after initial results in a dozen states revealed no path for Haley to overtake him.