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.