Question: Which Democratic Party politician from South Dakota was re-elected to the Senate in 1974 over a colonel in the United States Air Force who received the Medal of Honor for his actions in the Vietnam War?
{'answer': 'George McGovern', 'supporting_facts': [['Electoral history of George McGovern', 0], ['Electoral history of George McGovern', 5], ['Leo K. Thorsness', 0]]}