Updated at 12:05 a.m.

Freshman Rep. Adam Kinzinger (R-Ill.) beat longtime Rep. Don Manzullo (R-Ill.) in their primary Tuesday.

Kinzinger led 56 percent to 44 percent in the state’s newly drawn 16th district, with 99 percent of precincts reporting. AP has called the race in Kinzinger’s favor.

The two were drawn together under a redistricting plan crafted by Democrats. The race pitted an up-and-coming member of Congress and one of the chamber’s youngest members in Kinzinger against a longtime conservative stalwart in the 67-year-old Manzullo.

Kinzinger had the support of House Majority Leader Eric Cantor (R-Va.) and a super PAC dedicated to defeating congressional incumbents that spent more than $200,000 on his behalf. Manzullo, meanwhile, was a favorite of tea party groups who felt Kinzinger hasn’t been sufficiently conservative in his short time in Congress.

It was the second matchup between incumbents of the young primary season. In Ohio, Rep. Marcy Kaptur (D) beat Rep. Dennis Kucinich (D) on March 6.

Manzullo is the third incumbent to lose this cycle, including Kucinich and Rep. Jean Schmidt (R-Ohio), who lost her primary the same day as Kucinich to a non-incumbent challenger who was also supported by the anti-incumbent super PAC, the Campaign for Primary Accountability.

In Tuesday’s other high-profile House matchup, Rep. Jesse Jackson Jr. (D-Ill.) easily won his primary, defeating former congresswoman Debbie Halvorson.

The latest results show Jackson leading Halvorson 71 percent to 29 percent in his Chicago-based district, which after redistricting was stretched into some more suburban and rural areas formerly represented by Halvorson. Halvorson lost reelection in 2010 and was attempting a comeback.

In other primaries, former Veterans Affairs official Tammy Duckworth easily defeated Raja Krishnamoorthi in the Democratic primary to face freshman Rep. Joe Walsh (R-Ill.). Duckworth lost a 2006 open seat race to Rep. Peter Roskam (R-Ill.) but is a top Democratic hope this year.

In another top-targeted seat for Democrats, business consultant Brad Schneider won the Democratic nomination to face Rep. Bob Dold (R-Ill.), turning aside a spirited challenge from 25-year-old community organizer and liberal favorite Ilya Sheyman. The win comes as a relief to national Democrats, who are counting on winning Dold’s seat and felt Schneider had a better chance.

A similar race played out in Rep. Tim Johnson’s (R-Ill.) district, where the establishment pick, prosecutor Matt Goetten, trailed liberal favorite David Gill narrowly late Tuesday night. The race was too close to call as of midnight eastern time.

East Moline City Councilwoman Cheri Bustos won the Democratic nomination to face freshman Rep. Bobby Schilling (R) in another top-targeted district for Democrats.

And in retiring Rep. Jerry Costello’s (D-Ill.) district, former GOP lieutenant governor nominee Jason Plummer appeared set to face former local school superintendent Brad Harriman (D). The race is considered a toss-up.