Question: Chauncey Klugh 'Greg' Gregory is a Republican member of the South Carolina Senate, representing the 16th District, Gregory expressed his wish to re-enter the State Senate, and he ran for the District sixteen seat in which year, after it was vacated by newly elected Congressman Mick Mulvaney?
{'answer': '2011', 'supporting_facts': [['Chauncey K. Gregory', 2], ['Mick Mulvaney', 0]]}