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2012 United States Senate elections - Wikipedia
United States Senate elections, 2012 - Ballotpedia
Senate Map - Election 2012 - NYTimes.com - The New York Times
2012 United States elections - Wikipedia
United States Congressional elections results, 2012 - Ballotpedia
Senate Race - 2012 Election Center - Elections & Politics from CNN.com
Election results 2012: Dems to keep Senate after big night - POLITICO
United States Congress elections, 2012 - Ballotpedia
Senate Election 2012 | University of Illinois