 From the Roanoke News Desk of the Virginia Talk Radio Network, I'm Bill Trefiro. The Virginia Bar Association has canceled the debate between U.S. Senator Tim Kaine and Republican challenger Hung Kau. The debate was scheduled for July 20th at the Omni Homestead Resort in Hot Springs. The Bar Association announced on its website that the debate was canceled because it could not get a commitment from the Kau campaign.