Primary Election Dates by Month

  State/Territory Incumbent Primary Date
March Texas Rick Perry (R)* March 4
  Illinois Pat Quinn (D) March 18
April No primaries scheduled  
May Ohio John Kasich (R) May 6
  Nebraska Dave Heineman (R)* May 13
  Arkansas Mike Beebe (D)* May 20
  Georgia Nathan Deal (R) May 20
  Idaho C.L. “Butch” Otter  (R) May 20
  Oregon John Kitzhaber (D) May 20
  Pennsylvania Tom Corbett (R) May 20
June Alabama Robert Bentley (R) June 3
  California Jerry Brown (D) June 3
  Iowa Terry Branstad (R) June 3
  New Mexico Susana Martinez (R) June 3
  South Dakota Dennis Daugaard (R) June 3
  Maine Paul LePage (R) June 10
  Nevada Brian Sandoval (R) June 10
  South Carolina Nikki R. Haley (R) June 10
  Colorado John Hickenlooper (D) June 24
  Maryland Martin O’Malley (D)* June 24
  Oklahoma Mary Fallin (R) June 24
July No primaries scheduled  
August Virgin Islands John de Jongh Jr. (D)* August 2
  Kansas Sam Brownback (R) August 5
  Michigan Rick Snyder (R) August 5
  Tennessee Bill Haslam (R) August 7
  Hawaii Neil Abercrombie (D) August 9
  Connecticut Dan Malloy (D) August 12
  Minnesota Mark Dayton (D) August 12
  Wisconsin Scott Walker (R) August 12
  Wyoming Matthew Mead (R) August 19
  Alaska Sean Parnell (R) August 19
  Arizona Jan Brewer (R)* August 26
  Florida Rick Scott (R) August 26
  Vermont Peter Shumlin (D) August 26
  Guam Eddie Calvo (R) August 30
September Massachusetts Deval Patrick (D)* September 9
  New Hampshire Maggie Hassan  (D) September 9
  New York Andrew Cuomo (D) September 9
  Rhode Island Lincoln Chafee (D)* September 9

*Incumbent not eligible to run or not seeking reelection.