In a Democratic Primary in North Carolina today, 03/12/08, eight weeks till the vote, Barack Obama edges Hillary Clinton 49% to 41%, according to a SurveyUSA tracking poll conducted for WTVD-TV, the ABC owned station in Raleigh. Compared to an identical SurveyUSA poll released one month ago, before Obama won Virginia, Maryland, and Wisconsin, and before Clinton won Texas and Ohio, the contest in NC is largely unchanged. Then, Obama led by 10, now by 8. In Charlotte, Obama led by 2 points a month ago, by 7 points today. In Southern and Eastern NC, Obama led by 4 points a month ago, by 8 points today. Only in Raleigh and Greensboro did Clinton slice into Obama, trimming his lead from 16 points a month ago to 8 points today. Among women, Obama and Clinton are effectively even, as they were last month. Among men, Obama leads by 13. Clinton leads 5:3 among whites. Obama leads 5:1 among blacks. Obama leads among voters under age 50. The two are tied among voters age 50+. Complete results here. SurveyUSA Exclusive Interactive Tracking Graphs here.