North Carolina’s U.S. Senate primary will set up a high-stakes race in the fall that could decide control of the chamber. The main contenders are ex-Democratic Gov. RALEIGH, N.C. (AP) — North Carolina’s primary will be the official starting gun for one of the country’s most closely watched U.S. Senate campaigns, likely pitting former Democratic Gov. Roy Cooper against former Republican National Committee Chairma... [5435 chars]