District 1
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- March 30 Democratic primary candidates:
- Note: Edgar Diaz was running but was removed from the ballot on January 4, 2012.[1]
- March 30 Republican primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 2
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 3
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- March 20 Democratic primary candidates:
- Note: Larry D. Craddieth was running but withdrew from the race on December 28.[2]
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 4
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 5
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 6
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 7
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 8
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 9
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Note: Incumbent Jeffrey Schoenberg (D) is not running for re-election.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 10
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 11
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Note: Incumbent Steve Landek (D) is not running for re-election in District 11. Instead he is running in District 12.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 12
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Note: Incumbent Martin Sandoval (D) is not running for re-election in District 12. Instead he is running in District 11.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 13
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 14
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- March 20 Democratic primary candidates:
- Note Richard J. Lewandowski filed to run but withdrew from the race January 9, 2012.[3]
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 15
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Note: Incumbent James Meeks (D) is not running for re-election.
- March 20 Democratic primary candidates:
- Note: Marquise D. Alston filed to run but was removed from the ballot on January 12, 2012.[4]
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 16
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 17
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 18
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Note: Incumbent Edward Maloney (D) is not running for re-election.
- March 20 Democratic primary candidates:
- Bill Cunningham Cunningham is currently the District 35 incumbent in the State House.
- March 20 GOP primary candidates:
- Barbara Ruth Bellar
- Ricardo Fernandez
November 6 general election candidates:
District 19
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- Note: Incumbent Maggie Crotty initially filed to run but announced on December 29, 2011 that she would be withdrawing.[5]
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 20
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 21
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Note: Incumbent Ron Sandack (R) is not running for re-election.
- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 22
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 23
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- Democratic primary candidates:
- Kevin Allen
- Greg Brownfield
- Tom Cullerton, Village President of Villa Park
- Republican primary candidates:
November 6 general election candidates:
District 24
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 25
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Note: Incumbent Chris Lauzen (R) is not running for re-election.
- March 20 Democratic primary candidates:
- Corinne Pierog
- Steven L. Hunter
- March 20 GOP primary candidates:
November 6 general election candidates:
District 26
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 27
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 28
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Note: Incumbent John Millner (R) is not running for re-election.
- March 20 Democratic primary candidates:
- Daniel Kotowski Kotowski is currently the District 33 incumbent in the State Senate.
- March 20 GOP primary candidates:
- Jim O'Donnell
- Gayle Smolinski
November 6 general election candidates:
District 29
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Note: Incumbent Susan Garrett (D) is not running for re-election.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 30
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- Note: Gregory S. Jacobs was removed from the ballot on January 9, 2012.[6]
November 6 general election candidates:
District 31
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Note: Incumbent Suzi Schmidt (R) is not running for re-election.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- Linwood "Lennie" Jarratt
- Lawrence Leafblad
- Michael White
- Joe Neal
November 6 general election candidates:
District 32
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 33
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Note: Incumbent Dan Kotowski (D) is not running for re-election in District 33. Instead he is running in District 28.
- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
- Note: Craig M. Powers was running but withdrew from the race on December 23.[7]
November 6 general election candidates:
District 34
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Note: Incumbent Dave Syverson (R) is not running for re-election in District 34. Instead he is running in District 35.
- March 20 Democratic primary candidates:
- Note: Jim Hughes withdrew from the race on December 12.[8]
- March 20 GOP primary candidates:
November 6 general election candidates:
District 35
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 36
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- March 20 Democratic primary candidates:
- Mike Jacobs Incumbent Jacobs was first elected to the Senate in 2005.
- Mike Boland, former Illinois State Rep from 1971-2011
- March 20 GOP primary candidates:
November 6 general election candidates:
District 37
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 38
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- March 20 Democratic primary candidates:
- Christine Benson
- Tom Ganiere
- Kevin Kunkel
- March 20 GOP primary candidates:
November 6 general election candidates:
District 39
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 40
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- No candidates have filed.
November 6 general election candidates:
District 41
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
- Note: Duane Bradley was removed from the ballot on January 9, 2012 for having insufficient signatures.[9]
November 6 general election candidates:
District 42
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 43
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 44
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 45
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 46
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- March 20 Democratic primary candidates:
- Dave Koehler Incumbent Koehler was first elected to the Senate in 2006.
- James Polk
- Marvin Bainter
- Note: G. Allen Mayer withdrew from the race on December 2, 2011.[10]
- March 20 GOP primary candidates:
November 6 general election candidates:
District 47
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 48
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Note: Incumbent Tom Johnson (R) is not running for re-election.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 49
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Note: Incumbent William "Sam" McCann (R) is not running for re-election in District 49. Instead he is running in District 50.
- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- Gary Fitzgerald
- Anthony Giles
- Garrett Peck
- Brian Smith
November 6 general election candidates:
District 50
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Note: Incumbent Larry Bomke (R) is not running for re-election.
- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 51
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Note: Incumbent Kyle McCarter (R) is not running for re-election in District 51. Instead he is running in District 54.
- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 52
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- March 20 Democratic primary candidates:
- Mike Frerichs Incumbent Frerichs was first elected to the Senate in 2006.
- March 20 GOP primary candidates:
- No candidates have filed.
- Note: Alan Nudo withdrew from the race on January 21, 2012.[11]
November 6 general election candidates:
District 53
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 54
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
- Note: John O. Jones withdrew from the race on January 4, 2012.[12] Incumbent Jones was first elected to the Senate in 2003.
November 6 general election candidates:
District 55
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 56
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 57
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- March 20 Democratic primary candidates:
- March 20 GOP primary candidates:
November 6 general election candidates:
District 58
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- March 20 Democratic primary candidates:
- No candidates have filed.
- March 20 GOP primary candidates:
November 6 general election candidates:
District 59
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- March 20 Democratic primary candidates:
- Fred Kondritz
- Gary Forby Incumbent Forby was first elected to the Senate in 2003.
- March 20 GOP primary candidates:
November 6 general election candidates: