North Carolina Democratic Senate candidate Deborah Ross speaks to the crowd before speaking at a campaign rally for Hillary Clinton in Charlotte, N.C., Tuesday, July 5, 2016. U.S. Sen. Richard Burr of North Carolina is criticizing his Democratic challenger, Deborah Ross, saying she has failed to make clear her position on the Trans-Pacific Partnership – a trade deal that critics say could add hurt North Carolina communities already damaged by the North American Free Trade Agreement. Chuck Burton AP