Democratic State Senator Sarah Trone Garriott confirmed on December 1 that she will move to Dallas County and seek re-election in the new Iowa Senate district 14. Her decision sets up a potential 2022 race against Iowa Senate President Jake Chapman, the second-ranking Republican.

Chapman has not confirmed his plans. But in a December 2 Facebook post, he hinted that he will stay in the suburban swing district where he now lives. (I expected him to move to a nearby district that is safe for the GOP, as Senate Majority Leader Jack Whitver is doing.)

A race between Chapman and Trone Garriott would likely be one of next year’s most expensive Iowa legislative campaigns, and would be closely watched for signs of political change in the suburbs.

The only Iowa legislative race to go to a recount in 2020 was resolved this week. Democrat Sarah Trone Garriott won the open seat in Senate district 22 by 23,110 votes to 22,946 for Clive Mayor Scott Cirksena (50.1 percent to 49.8 percent), according to updated numbers on the Iowa Secretary of State’s website. The initial results following the canvass had Garriott ahead by 23,113 votes to 22,946. Cirksena called Trone Garriott on November 20 to concede.

The result gives Republicans a 32 to 18 majority in the upper chamber, for now. Trone Garriott was the only Democrat to win a GOP-held seat. Republican Jeff Reichman defeated Democratic State Senator Rich Taylor in Senate district 42. However, if Republican Mariannette Miller-Meeks wins the second Congressional district race, which is now in a recount, she would resign from the legislature, setting up a special election in Senate district 41 early next year.

Trone Garriott will join the largest ever contingent of women in the Iowa Senate. In January they will number thirteen with Miller-Meeks or twelve without her.

Senate district 22 is among Iowa’s most over-populated legislative districts, due to rapid growth in the western suburbs of Des Moines during the past decade. While most competitive state Senate races had between 27,000 and 35,000 ballots cast, more than 46,000 people voted in Senate district 22. Trone Garriott won the Polk County side (precincts that are part of House district 43) by nearly a 10-point margin, 9,620 votes to 7,885. Cirksena won the Dallas County side (House district 44) by about 5 percent, 15,061 votes to 13,490.

When Iowa adopts a new political map next year, this Senate district could become more Democratic, assuming it loses territory on the Dallas County side. On the other hand, the next map could put Trone Garriott, a Windsor Heights resident, in the same district as fellow Senate Democrat Claire Celsi, who lives in the part of West Des Moines that’s currently in Senate district 21. I’ve enclosed both of those maps below, along with the news release announcing Trone Garriott’s victory.

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.

Iowa Senate President Charles Schneider will not seek a third term, he announced on March 10, saying “the time is right for me to shift my focus to my career and family.”

The suburban district Schneider has represented since 2013 was already one of the top Democratic targets for 2020.