OH-9 · House

The district, in brief

Ohio's 9th is based in Northwest Ohio, including Toledo and the western Lake Erie coast. The text says the district was redrawn in 2025 in an effort to flip it to the Republican Party, and that Kaptur announced she would seek reelection despite this. The text gives no presidential result on the new lines and the facts carry no presidential baseline.

The incumbent is Democrat Marcy Kaptur, reelected with 48.3% of the vote in 2024 and unopposed in her primary with 45,827 votes. The Republican nominee is Derek Merrin, a former state representative (2016–2025) and the 2024 nominee for this district, who won a five-way primary with 44.1% over state representative Josh Williams (25.3%), former ICE deputy director Madison Sheahan (20.2%), Alea Nadeem and Anthony Campbell. Libertarian Matthew Althaus won his primary with 59.3% and is also on the ballot. As of June 30, 2026 Kaptur had raised $4,303,416 with $3,491,668 on hand, Merrin $1,508,953 with $531,214 on hand.

The raters split: Decision Desk HQ calls it D (July 14, 2026), the Cook Political Report Tossup (January 15, 2026), Inside Elections Flip (October 31, 2025) and Sabato's Crystal Ball Tossup (May 6, 2026). Two general-election polls are recorded: the DCCC Analytics Department (September 22–23, 2026, 481 LV) had Kaptur 48%, Merrin 48%, undecided 4%; McLaughlin & Associates, a Republican firm (April 18–20, 2026, 400 LV), had Merrin 47%, Kaptur 43%, with Gedert (L) at 3% and 7% undecided.

A paragraph quoting a model forecast from the day this brief was written is omitted; the current forecast is at the top of this page.

The facts, each beside its sentence

Not in the source: The text does not describe what territory the 2025 redraw added or removed, only its stated purpose.; No presidential result is given on the new lines, and the facts carry no presidential baseline.; The model's basis says no district polls, although the text records two general-election polls.; The McLaughlin poll lists David Gedert (L) at 3%, though the Libertarian nominee is Matthew Althaus; the text does not explain this.; No endorsements are listed for any nominee.

Read from the district's section of Wikipedia's state page (CC BY-SA), archived as 568e9f52653f; written by claude-fable-5-1 (batch reader) on 2026-09-30 and checked mechanically: every quote occurs verbatim in the archived text, every number in the brief occurs in the inputs. No probability here is the reader's.

Who holds the seat now

Marcy Kaptur (Democrat), in this chamber since 1983, 22 terms. Committees: House Committee on Appropriations; House Committee on the Budget.

From the congress-legislators dataset (CC0), archived as ae8cb9477c48. For a Senate race this lists both of the state's senators; the one whose term ends in the election year holds the seat on the ballot. For a House district redrawn for 2026 it is the member elected under the old lines with this number, who may be running elsewhere; the dossier above names who is running here.

How it has voted for president

A shift of 6.0 points toward the Republicans from 2016 to 2024. county returns placed on the current lines by 2020 block population; MEDSL county file (2016), an MIT-licensed county file (2020, checked against certified state results) and MEDSL precinct returns (2024). For a district split across counties this is an estimate, and where the state published the exact 2024 figure for these lines, that exact figure is the one the model uses.

Who are the voters?

Of about 541,399 adults 25 and over. In 2020 the district voted 46.6% Democratic (two-party) for president. With the same preferences and a 2022-style midterm turnout, it would vote 46.2% Democratic: the midterm electorate alone moves the margin 0.8 points toward Republicans. Group shares are estimated from how results vary across the state's census tracts (ecological inference, anchored to Pew's 2020 validated-voter figures) and calibrated to this district's actual 2020 vote; turnout is the Census survey's state rate by race and national rate by education, whose state samples carry margins of several points.

Not answered here: how each group will vote in 2026. These are 2020 preferences; this profile is description, not yet an input to the forecast.

The money

FEC bulk candidate summaries through September 30, 2026; $199,153 of independent expenditures for or against these candidates this cycle (FEC Schedule E, types 24E and 24A), which is the parties' and outside groups' own revealed view of whether this seat is in play.

The district in numbers

ACS 5-year 2023, assembled from census tracts by the 2020 population of their blocks inside the current lines, because the Bureau has not tabulated these lines; medians are population-weighted means of tract medians. Unemployment is the BLS county series placed on the district by block population, not seasonally adjusted, so changes are same-month comparisons. Income, transfers and jobs are BEA county accounts placed the same way, compared with the average district. Every other figure is a named column of a named table in the Bureau's summary file, archived before it was read. This is what a reader knows about a district before looking at a poll; the model does not yet use it, and whether it should is a registered question.

Who is favoured, and by how much?

The 90% interval runs from -5.6 to +24.2 points, D-R. It is wide because this district has never been polled.

What is this built on?

A model trained on every contested House race 2012-2024 predicts this district's lean from its own record: presidential and House results on the current lines, incumbency, both candidates' prior offices, outside and party money before 1 October, demographics and public-assistance shares from the Census release before the election, local unemployment and income, and religious tradition. The national margin comes from presidential approval, the economy, the midterm penalty and the generic ballot corrected for its measured lean. Draws share national and state errors, so the seat total and this district come from the same simulation.

Not answered here: district polls, which are not yet folded in.

Why does the model say this?

Each figure is how far this district's predicted lean moves when that one feature is set to the typical value across 2026 districts, everything else held: PAC money balance: 11.0 pts toward the Democrat; Democrat's experience (incumbent): 3.6 pts toward the Democrat; experience gap (+2 levels, D minus R): 2.6 pts toward the Democrat; 2024 presidential lean (R+9.6): 2.5 pts toward the Republican; outside money balance: 2.2 pts toward the Republican.

How sure is it, and of what?

Total sd 9.12 points, made of the seat's own volatility 91%, correlated polling error 9%. The decomposition is stored with the forecast rather than reconstructed, so a probability whose dominant input is a placeholder is visibly that.

Not answered here: a nowcast. 'If ballots were cast today' needs something that observes today, and for a House district nothing does. Publishing the election-day figure under both labels would make one forecast look like two.

How was this number made?

Run 6f211e6f-2bdc-4dda-8f72-81fc628dab0b, house_district_prior/0.2.0, as of 2026-10-02. Promoted by a pre-registered gate: on 2016-2022 its Brier score was 0.036 against 0.049 for the previous method, and on a single 2024 run 0.023 against 0.032 (experiments/district_gate_result.md, with an independent review).