Democratic Senator Tim Kaine has agreed to debate his Republican challenger in October.Preview: Richmond can move forward with plans to clean the James River. Mayor Levar Stoney announced yesterday the state approved the city's sewer overflow final plan. Stoney hopes the state will also come through with funding. The project is expected to cost almost 650 million dollars. Work is set to begin next July, and Stoney tells 12 On Your Side we need more investment pronto, ASAP.