Republican representative Adam Kinzinger poured over one-fourth of his $2.5 million-plus campaign budget into media production and buys during the 2017-2018 election cycle. However, since his first congressional campaign during the 2009-2010 election cycle, Kinzinger has traditionally spent the most money on media production and buys, which is purchased airtime that can be used to run political advertisements.

Illinois representative Raja Krishnamoorthi spent $1.9 million more on campaigning than his 8th congressional district challenger for the 2018 midterm election cycle. Krishnamoorthi, is a Democratic representative for Illinois’ 8th district. He was elected in 2016 and replaced Tammy Duckworth, who gave up her seat and successfully ran for the U.S. Senate.

In past years, Illinois Congresswoman Jan Schakowsky has raised near the same or less than the average of other Illinois congress members. Since the 1999-2000 cycle, she has raised more than the average, according to OpenSecrets.org, a non-profit organization that focuses on collecting fundraising and spending data from the FEC and presenting it to the public. In this election cycle, Schakowsky appears to have a similar pace, having already spent $775,084 from January to September 30th.

Running for reelection in Illinois’ 17th Congressional district, Cheri Bustos spent almost $3.2 million in the 2017-2018 election cycle. The expenditures ranged from dinners at Chicago and Washington DC’s most expensive restaurants, such as the 116 Club, to office supplies at Walmart.  Bustos’s top expenditures include payments towards communications, advertising and financial specialists, donations to the Democratic Congressional Campaign Committee and paychecks for staffers.

During the 2017-2018 election cycle, Republican U.S. Congressman Rodney Davis's campaign spent $4,085,715. Dr. Kent Redfield, a retired professor of Political Science who specialized in campaign finance at the University of Illinois Springfield said Davis increased his campaign spending because he was feeling pressure in his campaign.

Danny K. Davis, the 7th Congressional District Democrat, spent less on his 2018 campaign than any other Illinois Democrat - just $551,000. Davis has been in office since 1996. Every year, he runs virtually unopposed, always racking up at least 80% of the vote. In 2018, he pulled in 87.6% of the vote against his opponent, Illinois Republican Craig Cameron. In the 2016 election, he captured 84.2% of the vote after spending $503,000.

Illinois Congressman Darin LaHood spent $1.2 million to get re-elected in 2018, half of what he spent in the previous election cycle. LaHood, Republican Congressman for Illinois’ 18th District, spent over $2.2 million for his 2016 special election campaign, when he ran for the seat of Aaron Schock, who resigned after being charged with campaign fraud.

Lauren Underwood spent about $4.9 million to win her seat in the election for Illinois’s 14th congressional district. Most of Underwood’s expenditures from 2017-2018 were on TV advertising and payroll processing. Underwood’s campaign spent $2,498,871 million on TV Advertising alone, according the FEC. The payments were to the company “Ethica” in Garden City, NY.