2015 Illinois's 18th congressional district special election

The special election for Illinois's 18th congressional district was held on September 10, 2015, between Republican Darin LaHood and Democrat Rob Mellon to fill the remainder of the term of Republican Aaron Schock, who resigned on March 31, 2015. LaHood won the election with almost 69% of the vote.

History
Schock announced on March 17, 2015, that he would resign on March 31, 2015, following allegations of improper spending of political campaign funds and an impending ethics investigation.

According to Illinois state law, Governor Bruce Rauner must call the special election within five days after Schock's resignation becoming official, and it must be held within 115 days of the call. This would mean that the latest possible day for the election under Illinois law would have been July 29, 2015. However, in order to comply with the federal Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA), the general election was set for September 10, 2015, with party primaries to be held on July 7.

In April 2015, the Marshall County and McLean County governments requested that Schock or his campaign fund reimburse the counties for the special election costs, and two other counties are considering similar action. Stark County declined to request reimbursement, as it still had $12,000 left over from the April consolidated election and Schock had not been convicted of a crime.

Declared

 * Mike Flynn, political strategist and journalist at Breitbart News
 * Darin LaHood, State Senator and son of former U.S. Representative Ray LaHood
 * Donald Rients, former corrections officer

Withdrawn

 * Mark Zalcman, attorney. Zalcman stated that he was forced to withdraw because a limited time to file petitions was "done purposely by the Governor to insure that Darin LaHood would not have to face any grassroots opposition in the campaign," and that he would focus on the regular March 2016 primary. Zalcman did not file for the seat in 2016.

Declined

 * Jason Barickman, state senator
 * Bill Brady, state senator, nominee for governor in 2010, and candidate for governor in 2006 and 2014
 * Dan Brady, State Representative
 * Ed Brady, real estate developer
 * Tom Demmer, state representative
 * Robert Kent Gray, Jr., attorney and Lincoln Land Community College Trustee
 * Bobby Schilling, former U.S. Representative for Illinois's 17th congressional district
 * Ryan Spain, Peoria City Councilman
 * Jil Tracy, former state representative and candidate for lieutenant governor in 2014
 * Michael D. Unes, state representative

Endorsements
Incumbent and prior state elected officials
 * Bruce Rauner, Republican governor of Illinois
 * Jim Edgar, former Republican governor of Illinois

Incumbent and prior members of the U.S. House of Representatives
 * Peter Roskam, congressman for IL-6
 * Mike Bost, congressman for IL-12
 * Rodney Davis, congressman for IL-13
 * Randy Hultgren, congressman for IL-14
 * John Shimkus, congressman for IL-15
 * Adam Kinzinger, congressman for IL-16
 * Bobby Schilling, former congressman for IL-17
 * Joe Walsh, former congressman for IL-8
 * Thomas W. Ewing, former congressman for IL-15

Incumbent Illinois legislative officials
 * Jason Barickman, state senator for IL-53
 * Bill Brady, state senator for IL-44
 * Chapin Rose, state senator for IL-51
 * Sam McCann, state senator for IL-50
 * Kyle McCarter, state senator for IL-54
 * Jim Oberweis, state senator for IL-25
 * Dan Brady, state representative for IL-105
 * Keith P. Sommer, state representative for IL-88
 * Tom Morrison, state representative for IL-54

Other people
 * Dan Proft, conservative talk radio host and candidate for Illinois governor in 2010
 * Penny Pullen, former Illinois state representative and conservative activist
 * Paul Schimpf, former Republican nominee for Illinois Attorney General in 2014

Organizations
 * National Right to Life
 * NRA Political Victory Fund
 * United States Chamber of Commerce

Newspapers
 * Journal Star


 * Ted Cruz, Republican United States Senator from Texas and candidate for President of the United States in 2016
 * Mark Levin, conservative talk radio host
 * Steve King, congressman for Iowa's 4th congressional district
 * Louie Gohmert, congressman for Texas's 1st congressional district
 * Richard Viguerie, conservative activist and chairman of ConservativeHQ.com
 * Stephen Moore, economic writer and policy analyst, founder and former president of the Club for Growth, and chief economist of The Heritage Foundation
 * Erick Erickson, conservative blogger and editor-in-chief and CEO of RedState

Declared

 * Adam Lopez, member of the Springfield School Board and a Country Financial representative
 * Rob Mellon, teacher and candidate in 2014

Declined

 * Colleen Callahan, State Director for USDA Rural Development and nominee in 2008
 * Sonni Choi Williams, deputy corporation counsel for the City of Peoria
 * Kristin Dicenso, advisor for the Illinois Department of Transportation
 * Jehan Gordon-Booth, State Representative
 * Dave Koehler, State Senator
 * Andy Manar, State Senator
 * John M. Sullivan, State Senator