Illinois Democrats sweep statewide races, flip 2 House seats

CHICAGO — Democrats dominated in Illinois on Tuesday, winning all statewide offices and flipping two Republican-held congressional seats, including one that's been in GOP hands for decades.

Billionaire businessman J.B. Pritzker defeated Republican Gov. Bruce Rauner , who conceded the race less than an hour after polls closed, while Democratic state Sen. Kwame Raoul topped Republican attorney Erika Harold for the open attorney general seat.

Republican Rep. Peter Roskam of Wheaton lost his bid for a seventh term to Democrat Sean Casten in a suburban Chicago district, while Democrat Lauren Underwood defeated GOP Rep. Randy Hultgren in another Chicago-area district the party had targeted in its effort to win House control.

Republican Rep. Mike Bost won re-election after a tougher-than-usual challenge from Democrat Brendan Kelly in a southern Illinois district, and central Illinois GOP Rep. Rodney Davis narrowly survived over Democrat Betsy Dirksen Londrigan.

Other Democrats who won re-election statewide: Comptroller Susana Mendoza, Secretary of State Jesse White and Treasurer Michael Frerichs.

The election saw higher-than-normal turnout, as Democrats pushed back against President Donald Trump and his policies and Republicans tried to hold on to some power in the left-leaning state.

Here's a look:

CONGRESS

Casten, a scientist and businessman from Downers Grove, defeated Roskam, arguing that he was too conservative and too cozy with the president to continue representing a district that supported Hillary Clinton over Trump in 2016. He criticized Roskam for his long record of opposing abortion and for helping draft the GOP tax plan, which Casten said hurts the district's residents. Roskam warned Casten wants to raise taxes and criticized the first-time candidate for name-calling and "embracing the politics of ridicule," saying he uses the same kind of divisive talk — and tweets — that has turned the district's voters against Trump.

Underwood, a 32-year-old African-American nurse from Naperville, topped Hultgren to become the first woman and first minority to win the congressional seat once held by GOP House Speaker Dennis Hastert. Underwood said she was motivated to run for her first political office after Hultgren supported health care legislation that would've made coverage of pre-existing conditions more expensive. She also criticized him for not being accessible to district residents. Hultgren argued voters knew his track record of getting things done for the district, a rural and suburban area north and west of Chicago that backed Trump by 4 points over Clinton.

Bost, of Murphysboro, won re-election over Kelly, the St. Clair County state's attorney, in a southern Illinois district that Democrats also sought to flip . The once reliably Democratic district strongly backed Trump in 2016, and the president campaigned for Bost last month. Trump also was in the district in August, where he touted his trade policies at U.S. Steel in Granite City. Bost is a former state representative first elected to the House in 2014. Both he and Kelly are veterans — Kelly served in the Navy and Bost in the Marines. Green Party nominee Randy Auxier of Murphysboro also ran.

In central Illinois, Davis of Taylorville narrowly survived the challenge from Londrigan to win his fourth term. Londrigan, of Springfield, also made health care a central focus of her campaign, recounting her son's life-threatening illness and saying her family could have faced bankruptcy if they hadn't had health insurance. She criticized Davis for supporting legislation to repeal and replace the Affordable Care Act, then joining a White House celebration of the House vote. Davis argued Londrigan is too extreme for the district. Vice President Mike Pence headlined a fundraiser for Davis in October, and Trump's daughter, Ivanka Trump, campaigned with him.