Former President Donald Trump is crushing Nikki Haley by a more than 2 to 1 margin in new internal poll of the next major Republican primary state of South Carolina. Trump leads his sole remaining primary rival by 66% to 31% in her home state, according to the poll that was bankrolled by a pro-Trump political action committee and first reported by The Messenger. Tony Fabrizio, a respected Republican pollster, said the results suggest Haley will have a very uphill struggle to win her home state, the next big fight on the GOP primary calendar. “Nikki Haley … is unable to articulate a path to vic…