Now that Iowa’s political maps for the next decade have been finalized, it’s time to look more closely at the district lines in and near larger metro areas. Although most districts anchored in cities are safe for Democrats, these metros will include quite a few battleground Iowa House and Senate races over the next two election cycles. Several “micropolitan” districts containing mid-sized cities remain competitive as well, and a forthcoming post will cover those maps.

I’ll write more about the political landscape of individual House or Senate districts once lawmakers and other contenders have confirmed their plans for next year. Several incumbent match-ups have already been worked out, and I’m continuing to update this post. (Please send tips on candidate announcements.)

I’ve grouped each Iowa Senate district with the two state House districts it wholly contains.

As Iowa Republicans look for a candidate who could win back the third Congressional district, the Des Moines rumor mill has focused on several state lawmakers from Polk County. One of them, State Senator Zach Nunn, says he is getting a lot of encouragement and is not ruling the race out.

As was the case two years ago, Democratic candidates are at a financial disadvantage in almost all of the Iowa Senate districts both parties are targeting.

The disparity adds another challenge to a party already facing a difficult path to gaining ground in the upper chamber. Republicans currently hold 29 of the 50 Senate seats and are guaranteed to pick up the district independent Senator David Johnson is vacating.

What was already a difficult race for Democrats in Iowa Senate district 15 became virtually impossible on September 14, when a federal grand jury charged Leesa Marie Parkhill-Nieland with theft and Social Security fraud. Parkhill-Nieland is married to Dan Nieland, the Democratic candidate who will face two-term Republican State Representative Zach Nunn in November.

At an emergency meeting of the Jasper County Democratic Central Committee on September 17, Nieland admitted he knew his wife was facing a criminal investigation before seeking the nomination at a special convention last month.

Republicans are all but guaranteed to maintain control of the Iowa Senate after November and could expand their majority, now at 29 out of 50 seats. However, Democrats have a chance to pick up a few districts as they work toward winning back the chamber in 2020.

Prospects for Democrats to gain ground in the Iowa Senate took a sharp turn for the worse over the past week. The party’s best pickup opportunity became a more difficult race when GOP incumbent Rick Bertrand unexpectedly decided to seek a third term after all. Meanwhile, Republicans landed their strongest possible candidate for a Democratic-held seat now open because of Senator Chaz Allen’s unexpected retirement.