The Green Papers
2012 Senatorial Primaries at a Glance


This "at a glance" look at the primary in each State simply lists the winner (and, in many cases, the candidate who came in second) in each Primary in chronological order.

boldface followed by (inc) indicates the incumbent

2012 Senatorial Primaries at a Glance
Date State Democrat
     Winner % Second %      Winner % Second %
Tuesday 6 March 2012 Ohio   Brown (inc) U       Mandel L Pryce  
Tuesday 13 March 2012 Mississippi   Gore D Weiner     Wicker (inc)      
Tuesday 3 April 2012 Maryland   Cardin (inc) L Muse     Bongino 34 Douglas 28
Mississippi R         R        
Tuesday 24 April 2012 Pennsylvania   Casey (inc)         Smith 40 Rohrer 22
Tuesday 8 May 2012 Indiana   Donnelly U       Mourdock L Lugar  
West Virginia   Manchin (inc)         Raese U    
Tuesday 15 May 2012 Nebraska   Kerrey         Fischer 41 Bruning 36
Tuesday 29 May 2012 Texas   Paul Lindsey Sadler (35.1%) v Grady Yarbrough (25.8%) proceed to 31 July runoff   David H. Dewhurst (44.6%) v Rafael Edward "Ted" Cruz (34.2%) proceed to 31 July runoff
Tuesday 5 June 2012 California   Feinstein (I) 50%   Emken 12%
Montana   Tester (inc) U       Rehberg      
New Jersey   Menendez (inc) U       Kyrillos      
New Mexico   Heinrich D Balderas     Wilson L Sowards  
Tuesday 12 June 2012 Maine   Dill 45 Dunlap 35   Summers 30 Poliquin 23
Nevada   Heller (inc)         Berkley      
North Dakota   Heitkamp U       Berg L Sand  
Virginia   Kaine P       Allen L Radtke  
Tuesday 26 June 2012 New York   Gillibrand (inc) C       Long N Turner  
Utah   Howell C       Hatch (inc) L Liljenquist  
Tuesday 31 July 2012 Texas R Sadler L Yarbrough   R Cruz D Dewhurst  
Thursday 2 August 2012 Tennessee   Clayton 30 Davis 10   Corker (inc)      
Tuesday 7 August 2012 Michigan   Stabenow (inc) U       Hoekstra D Durant  
Missouri   McCaskill (inc) U       Akin 36 Brunner 30
Washington   Cantwell (inc) D       Baumgartner 30    
Saturday 11 August 2012 Hawaii   Hirono D Case     Lingle      
Tuesday 14 August 2012 Connecticut   Murphy L Bysiewicz     McMahon L Shays  
Florida   Nelson (inc)         Mack D Weldon  
Minnesota   Klobuchar (inc)         Bills N Carlson  
Wisconsin   Baldwin U       Thompson 34 Hovde 31
Tuesday 21 August 2012 Wyoming   Chesnut D Hamburg     Barrasso (inc)      
Tuesday 28 August 2012 Arizona   Carmona U       Flake L Cardon  
Vermont   Sanders (inc) U       MacGovern L Paige  
Thursday 6 September 2012 Massachusetts   Warren U       Brown (inc) U    
Tuesday 11 September 2012 Delaware   Carper (inc)         Wade P    
Rhode Island   Whitehouse (inc) U       Hinckley U    


  • If a candidate wins 75.5% or more of the primary vote, the second place finisher is not listed.
  • U means that this candidate ran in the primary unopposed (that is, with no other candidates appearing on the ballot but him/her). Please note that write-ins do NOT count as such "other candidates on the ballot" but the appearance of "Uncommitted" (or equivalent, such as "None of the Above") on a ballot DOES.
  • L indicates a landslide majority [60.5 to 75.4% of the primary vote] for the winner.
  • D indicates a decisive majority [52.5 to 60.4% of the primary vote] for the winner.
  • N indicates a narrow majority [50.0(+1 vote) to 52.4% of the primary vote] for the winner.
  • Where a winning (or, in a runoff State, leading) candidate has failed to gain at least a majority of the primary vote, the winner(leader) of the primary and the candidate who came in second are both listed with their respective percentages of the primary vote rounded up or down to the nearest whole integer.
  • C indicates the Party's nominee was chosen by a Party-run process other than the Primary (State Convention, Party Central Committee or equivalent).
  • P indicates Primary cancelled / nomination by default because nominee was the only candidate to have filed for this Party's Primary for this office. P also applies to nominees-to-be by apparent Party consensus (i.e. no opposition at an ensuing Convention).
  • R indicates any Runoff which has been scheduled for this date.

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