Editor’s note: This analysis has been updated with unofficial results from all the races. Original post follows.

The major parties have spent hundreds of thousands of dollars on the most competitive 2022 Iowa House and Senate races.

This post highlights seven state Senate districts where one or both parties have spent large sums, and another seven where even without a big investment by Democrats or Republicans, the results could shed light on political trends.

All voter registration totals listed below come from the Iowa Secretary of State’s office, as reported on November 1. All absentee ballot figures come from the Secretary of State’s office, as reported on November 7. All past election results come from the map Josh Hughes created in Dave’s Redistricting App.

All figures for in-kind spending by the Iowa Democratic Party or Republican Party of Iowa come from filings with the Iowa Ethics and Campaign Disclosure Board. I focus on in-kind spending, because candidates in battleground Iowa legislative races typically give most of their funds to the state party. The party then covers the bulk of the large expenditures for direct mail and/or television, radio, and digital advertising.

Iowa Senate Majority Leader Jack Whitver announced on November 29 that he will seek re-election in 2022, but not in the Ankeny-based district he has represented since 2011.

In a news release, Whitver bragged about keeping his promises “to implement conservative budgets, reduce taxes and put pro-growth policies into place,” while “funding education” and supporting law enforcement “with bold reforms.”

But the top Senate Republican isn’t confident enough to let the Iowans who know him best judge his record. Instead of running in the new Senate district 21, where he now lives, Whitver will flee to safer GOP territory in Senate district 23.

Whitver’s decision closes one door for the second-ranking Senate Republican, Jake Chapman, who was also placed in a swing suburban district following redistricting.

Iowa’s new legislative maps create many more match-ups between Republican incumbents than Democrats. But two first-term Democratic senators, Claire Celsi and Sarah Trone Garriott, live in the new Iowa Senate district 16. Celsi announced in early November she’ll seek re-election in the district, which covers a blue-trending portion of Des Moines’ western suburbs.

Trone Garriott hasn’t decided how to proceed and told Bleeding Heartland in a recent telephone interview that she hasn’t ruled anything out. She has “lots of options,” she said, but “none of them are easy.”

Trone Garriott’s choice may depend in part on how Iowa Senate President Jake Chapman responds to being placed in a competitive district for the first time. Will the chamber’s second-ranking Republican stay in a district Joe Biden carried, or flee to safer nearby territory?

It’s been a while since Bleeding Heartland posted a thread dedicated to the Iowa Senate races. Democrats go into the election with a 26 to 24 majority in the upper chamber, where 25 of the 50 districts are on the ballot this year. Only a handful of those races appear to be competitive.

Carolyn Fiddler, who blogs about state legislative races here, has rated the Iowa Senate as a “Tossup/Tilt D” chamber on her list of state legislative chambers most likely to flip. In those terms, I consider the Iowa Senate a “lean D” chamber, as a lot has to break for Republicans to get them to 26 seats.

In theory, Democrats are defending six seats: five incumbents have challengers, and one Democratic-held seat is open. In reality, Republicans have failed to mount strong challengers against Amanda Ragan in Senate district 27 or Tod Bowman in Senate district 29. Moreover, the Iowa GOP is not putting significant money behind Jeremy Davis, its challenger in Senate district 23. Davis has just started running some positive radio ads in the Des Moines area, whereas radio commercials were launched more than a month ago in the targeted races.

The Democratic incumbent who appears to be most at risk is Daryl Beall in Senate district 5. His territory changed quite a bit with redistricting, and Mitt Romney carried it in the 2012 presidential election. Republicans are also making a strong play for the open Senate district 15. Both parties have been running radio ads since late September, but as of last week only Democrats were on television in Senate district 15, with a positive spot about Chaz Allen. To a lesser extent, Republicans have put money behind Brian Schmidt’s campaign in Senate district 49, but the demographics of that district favor incumbent Senator Rita Hart.

Republicans could win two of the Democratic-held Iowa Senate seats, but that won’t get them to the magic 26 unless they hold all of their current seats. Two of those are heavily targeted. In the open Senate district 39, both parties have been advertising on the radio for more than a month. Democrats have invested far more in television ads (all positive for Kevin Kinney) than Republicans have for Mike Moore.

The other Republican-held Senate seat most at risk appears to be Senate district 41. By voter registration and top of the ticket performance, this should be a Democratic seat. The best thing going for State Senator Mark Chelgren is that Mariannette Miller-Meeks is the Republican nominee in Iowa’s second Congressional district. She’s an underdog against Representative Dave Loebsack, but a strong turnout for her in the Ottumwa area would benefit Chelgren, as it did in 2010.

Carolyn Fiddler encouraged readers to keep an eye on Senate district 47, but even though Barack Obama carried that district in 2012, it would be an upset for Maria Bribriesco to defeat incumbent Roby Smith. That said, Democrats have hit SD-47 with quite a bit of direct mail.

Any relevant comments are welcome in this thread.

UPDATE: Forgot to mention that surrogates have gotten involved with many of these races. Senator Tom Harkin headlined an October 27 rally in Fort Dodge for Beall. Maryland Governor Martin O’Malley did an event earlier this month for Steve Siegel in Senate district 41. On the Republican side, Governor Terry Branstad has been in Ottumwa recently to help Chelgren and plans events for the GOP candidates in Senate districts 15 and 39 soon.

SECOND UPDATE: Tim Kraayenbrink, the GOP challenger to Beall in Senate district 5, has just started running a positive television commercial in the Des Moines market. The gist is that he’s a small business owner, unlike “career politicians in Des Moines.” I haven’t caught it on tape yet but am fairly certain he did not mention Beall by name.

The filing period for general-election candidates closed on August 15. You can view the full candidate list for federal and state offices on the Iowa Secretary of State's website. John Deeth briefly reviews all 100 House races here. Next month, I'll be posting on the most competitive Iowa House races.

For today, I'm interested in what appears to be a pattern of Republicans letting Iowa House seats go in battleground Iowa Senate districts. I suspect a strategy is in play to depress GOTV in the more Democratic halves of these districts.  

Competitive primaries happened yesterday in several of the Iowa Senate districts that will determine control of the upper chamber for the next two years. Full results are on this page of the Secretary of State's website.

My first take on the general election match-ups is below. I still see Democrats favored to hold their majority, with a decent chance of expanding it.