Party favorites carried the day in Illinois's 12th and 17th District congressional primaries.
Democratic Sen. Dick Durbin's chosen candidate, Cheri Bustos, won the party nomination to face freshman GOP Rep. Bobby Schilling in Illinois's 17th District, and retiring Rep. Jerry Costello's anointed successor, Brad Harriman, got the Democratic nod in the 12th District. Wealthy businessman Jason Plummer, who ran for lieutenant governor in 2010, won the Republican nomination for Costello's open seat.
The AP called the races after 11 p.m. Eastern time. With 98 percent of precincts reporting in the 12th District, Harriman had 69 percent of the Democratic vote, according to the AP. Plummer had 55 percent of the GOP primary vote.
In the 17th District, with 93 percent of precincts reporting, Bustos had 58 percent of the Democratic vote. Schilling was unopposed for renomination on the Republican side of the 17th District ballot.