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If your stations are seeing a bump in political ad spending for 2022 so far, to quote Bachman-Turner Overdrive, you ain't seen nothing yet. Midway into the midterm election season, political campaign ad spend has already passed the half-billion dollar mark, and that's just for the top five races.

According to an analysis from Ad Age in partnership with Kantar/CMAG, including both campaign and political action committee spending, four of those five are for Senate seats in Georgia (with $132 million spent so far), Pennsylvania ($119m), Arizona ($90m) and Nevada ($74m), the first three of which shifted from red to blue in 2020's Presidential election.

The fifth, with an $87 million price tag to date, is Illinois' gubernatorial race, where June 28's primary pits Democratic incumbent JB Pritzker against Republican candidate and Aurora, Illinois mayor Richard Irvin. Driving the big spend are three billionaires: Pritzker, a member of the Pritzker family behind Hyatt Hotels; Ken Griffin, Citadel hedge fund founder and CEO, financing the campaign to oust Pritzker; and shipping-supplies company Uline founder and heir to the Schlitz brewing fortune Richard Uihlein, backing another Republican candidate and Illinois State Senator, Darren Bailey, who is currently leading Irvin in the polls.

In the league-leading Georgia senate race, Democrats have outspent Republicans to help incumbent U.S. Sen. Raphael Warnock keep his seat against former football player Herschel Walker, who won the Republican nomination and has been endorsed by former President Donald Trump. In Pennsylvania, it's the reverse situation: Republicans have spent more than Democrats in a senate race with no incumbent, where former TV doctor Mehmet Oz, also Trump-endorsed, currently polls behind the state's Lieutenant Governor John Fetterman.

The Arizona race shows Democrats so far spending twice as much as Republicans – $60 million vs. $30 million – with presumptive Democratic nominee Mark Kelly going up against a Republican candidate to be determined in the Aug. 2 primary where Trump-backed candidate and venture capitalist Blake Masters could also be a factor. Democrats are far ahead in ad spend in Nevada so far – $54 million vs. $20 million – where incumbent Democratic U.S. Sen. Catherine Cortez Masto is up against Trump-endorsed former Nevada Attorney General Adam Laxalt.