Three U.S. Senate races remain undecided. Votes are still being counted and recounted in Alaska and Minnesota. In Georgia, a runoff is set between incumbent Republican Saxby Chambliss and Democrat Jim Martin. So what case is Chambliss making as he asks voters to send him back to Washington? Why are 41 or more Republican votes vital in the U.S. Senate? How is Chambliss preparing for all the Democratic money and effort pouring into his state? We ask all these questions to Sen. Chambliss in an extended Dateline interview.
