Former U.N. Ambassador Nikki Haley’s South Carolina roots don’t matter to an overwhelming majority of the state’s likely Republican primary voters when considering whether to support her in the nominating contest next week, a Monday poll found. Only 20% of the South Carolinians said Haley being from the state makes them more likely to vote for her, compared to 5% who said the opposite and 75% who said it makes no difference, according to a CBS News/YouGov poll. The same survey found that 89% of the likely GOP primary voters were more concerned about national issues than local ones ahead of the…