Candidates for U.S. Senate from Virginia -- incumbent Mark Warner, a Democrat, and GOP challenger Ed Gillespie -- have agreed to a VBA-sponsored debate. The event at 11 a.m. July 26 during the 124th Summer Meeting at The Greenbrier. “PBS NewsHour” co-anchor and managing editor Judy Woodruff will moderate the debate. The PBS show plans to partner with the VBA to live stream the debate. Admission to the debate is free. The event is open to the public. All audience members must get a badge from VBA representatives on-site. The news media is invited and must register for credentials.