Iowans will elect 25 state senators today. Those races have attracted far less attention than this year’s Iowa House races, because Republicans have a lopsided 32-18 majority in the upper chamber and only a 53-47 advantage in the House.

Nevertheless, it’s important to keep an eye on the Senate races, because this year’s outcome will influence Democratic prospects under the new map coming in 2021.

This overview covers five districts where both parties are spending six-figure amounts, seven districts where Republicans spent a significant amount, and four more districts where the results could shed light on political trends in various parts of the state, even though neither Democrats nor Republicans targeted the race.

Democrats continue to land solid candidates for Iowa Senate seats, despite the GOP’s 32-18 majority in the upper chamber.

This week Warren Varley, a farmer and attorney, made his campaign official in Senate district 10, where GOP incumbent Jake Chapman has not faced a serious challenge before.

After securing an early endorsement from his onetime boss U.S. Senator Chuck Grassley, David Young has landed another vote of confidence from a Republican heavyweight in his bid to represent Iowa’s third Congressional district.

Young campaign staff confirmed on June 7 that former Governor Terry Branstad, who is now U.S. ambassador to China, donated to the campaign this quarter. Young has mentioned Branstad’s contribution in conversations with politically active Iowans, according to a source who saw the former member of Congress recently.