A timeline of events in the 13th Congressional District race so far:
May 30, 2011 — The Illinois Senate approves and sends to Gov. Pat Quinn a new congressional map for the state that moves Champaign out of the 15th Congressional District and into a new 13th District which includes Springfield, Decatur and Bloomington-Normal. It's the fist time that Champaign-Urbana and Springfield are placed in the same congressional district.
June 16, 2011 — David Gill says that he is "very interested" in running in the new district. "I think this is a far more winnable district," said Gill, who lost three times to Rep. Tim Johnson in the old 15th Congressional District.
June 21, 2011 — Johnson won't say if he'll run in the new 13th District but does say he has rented an apartment in Litchfield, "so I can take day trips to Carlinville and Edwardsville and Springfield and all that," said the six-term congressman,
June 24, 2011 — Gov. Pat Quinn signs the new Illinois congressional district map.
Sept. 18, 2011 — Former state Rep. Jay Hoffman, D-Collinsville, says he will seek the Democratic nomination for Congress in the 13th District, challenging Gill and retired Litchfield educator James Gray. Later both Hoffman and Gray drop out.
Oct. 10, 2011 — Greene County State's Attorney Matt Goetten says he will not challenge Gill in the 13th District race, citing family obligations.
Nov. 10, 2011 — Goetten changes his mind, says he will run in the 13th District and oppose Gill.
Dec. 27, 2011 — Johnson gets two opponents — Frank Metzger of Glen Carbon and Michael Firsching of Moro in the Republican primary.
Feb. 11, 2012 — Sen. Dick Durbin endorses Goetten for the Democratic nomination, saying he has known the Goetten family for years. He said he would not utter "a negative word about Dr. Gill."
March 20, 2012 — Johnson, with 68 percent of the vote, defeats Metzger and Firsching; Gill apparently defeats Goetten by 143 votes, but Goetten declines to concede.
April 5, 2012 — Johnson announces that he will not run for a seventh term in the November election, that he wants to spend more time with his family.
April 20, 2012 — One month after the primary, Goetten finally concedes by way of a press release.
May 3, 2012 — Eight Republicans say they're interested in taking Johnson's place on the Republican ballot, including Jerry Clarke of Urbana, Rodney Davis of Taylorville, Erika Harold of Chicago, Becky Doyle of Gillespie, Metzger and Firsching, and Kathy Wassink of Shipman. Eventually the Republican county chairmen in the district narrow the list to Clarke, Davis, Harold and Wassink.
May 2012 — The four Republican hopefuls meet in open forums at six locations throughout the district, among them Clinton, Champaign, Bloomington, Springfield, Decatur and Carlinville.
May, 18, 2012 — Johnson declines to endorse any of the Republican candidates, although he says that Harold would be "a terrific choice." Earlier he had said that he didn't think Clarke, his former chief of staff, should be a candidate to replace him.
May 19, 2012 — Meeting behind closed doors at a Springfield hotel, the GOP county chairmen choose Rodney Davis to take Johnson's place.
June 25, 2012 — John Hartman, who collected 5,793 signatures, files as an independent candidate in the 13th District race.
Aug. 31, 2012 — Davis and Gill decry negative ads being run by "independent" groups in the congressional district.
Oct. 2, 2012 — Johnson blasts attack ads by both parties in congressional race, declines to endorse Davis.
Oct. 17, 2012 — Total "independent" group spending in the 13th District goes over the $3 million mark. Davis and Gill report spending a total of nearly $1.1 million in their campaigns.