Ohio Senate Bellwether Model
OH · Senate 2026

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Ohio Senate

Brown (D) vs. Husted (R) · Nov 3

– R seat · special How it works

The forecast

The prediction
About the prediction: a forecast for the Ohio U.S. Senate race built on five bellwether counties: polls and early voting now, official results on election night. The number is its margin, in points. Before election night it follows the polls; once results post, the five bellwether counties take over. The needle points to the leader; the dark arc is the likely range. Whoever gets the most votes wins; there is no runoff. Margins are in percentage points: "Brown +3" means Brown leads by 3.

–

Win chance
Likely range
Forecast, day by day
How to read this: each point is the forecast as it stood that morning, from the first day of early voting to Election Day, worked out with your current Fine-tune settings. Above the tie line Brown leads; below it Husted leads. The shaded band is the likely range. The hollow dots are the polling average; the gap between them and the forecast is the allowance for how Ohio polls have leaned, after the early-vote adjustment. Win chance shows the chance of winning instead: above 50% Brown is favored, below it Husted. Today's point follows the results on election night; in What-if mode a hollow circle at Election Day marks your number. Hover or tap a day for its numbers.

Numbers as a table

Things to know

Listen · two minutes

The race in two minutes

Read by Maren Holt, Pollitrack's anchor · Recorded October 24

0:00
-1:56
Read the transcript

I'm Maren Holt, and this is your Pollitrack digest on the Senate race in Ohio.

This is a special election for the seat JD Vance left to become vice president, and whoever takes it serves until January 2029. Ohio rotates the order of names from precinct to precinct, so we list them alphabetically: Democrat Sherrod Brown, a former senator, and Republican Jon Husted, the senator appointed to the seat last year. The vote is on November 3.

The polling average has Brown ahead by 3.1 points across eleven recent polls. Pollitrack's forecast takes 2 points off that, because Ohio polls have understated Republicans in every race since 2018. That leaves Brown ahead by 1.1, with a 59 percent chance of finishing first and Husted at 41 percent.

A lead that size is well inside a normal polling miss. Either candidate could finish ahead.

Early voting runs through November first. So far, about a million Ohioans have voted early, in person or by mail.

A big early vote does not tell us who is ahead. It tells us interest is high on both sides.

On election night, Pollitrack reads five bellwether counties, each standing in for a part of the state: Cuyahoga for Cleveland and Akron, Butler for the big metros and their suburbs, Erie on Lake Erie for the working-class swing vote, Wayne for rural and Appalachian Ohio, and Clark for the small cities and northwest farm country.

Polls close at 7:30 pm Eastern. As those counties report, the forecast stops leaning on polls and starts reading votes. Scroll down to explore each county, or switch to What-if mode and play out your own night. I'm Maren Holt. See you on election night.

Now

Early voting
How to read this: the line adds up early votes day by day, in person and by mail. The amber line is 2026; the gray lines are past years on the same day of early voting, so a 2026 line above them means more early votes than then. Refreshed every morning and afternoon from the Ohio Secretary of State's absentee voter export.
Numbers as a table

Cumulative early votes, in person and by mail, against the same day in 2022 and 2024.

202620242022
Early votes, share of 2024 at this point
How to read this: each bar is one county group's early votes as a share of 2024 at the same point; the black tick is Ohio overall, so a bar past the tick means that group is voting early faster than the state.
Faster than OhioSlowerOhio overall
Early voters, by which party's primaries they have voted in (2020–2026)
About this chart: Ohio doesn't register voters by party: the party here is the last party primary each early voter took part in, and voters with no primary on record count as unaffiliated.
Context

In the news
How to read this: the headlines free news sources carry about this race, newest first, with who published each. The counts are how many stories named each candidate in the last seven days. Pollitrack reads the headlines; it does not judge them and they do not change the forecast.

The newest headlines about this race, refreshed twice a day.

Explore

Five county groups
How to read this: every county joins the group whose bellwether county it has moved most like since 2016. The color is the group's margin in the view you pick: where its bellwether lands if the polls are right, its 2024 Senate result, or, on election night, how far each county has shifted since 2024. Darker means a bigger lead: 15 points or more, 5 to 15, or under 5. Tap a group or a county to light up its group.

Every county joins the bellwether it has voted most like since 2016.

All 88 countiesBellwether county
Group · bellwetherSharePolls right

Pick a group to light up its counties.

Explore

500 possible election nights
How to read this: the forecast is replayed 500 times, each with a different random draw of its uncertainty. Each dot is five possible nights, stacked by the statewide margin in 1-point steps: blue dots are Brown wins and red dots are Husted wins. The more dots on one side of the tie line, the likelier that candidate wins.

The forecast replayed 500 times, with every county group free to miss.

Wins per 100 nights · each dot = 5 nights

Trade-off
How to read this: pick two county groups. Left to right is one bellwether county's margin and bottom to top is another's, with the other three groups held where they are now. Each square is colored by the statewide result: blue squares are Brown wins and red squares are Husted wins, darker for a bigger win. The black line is a statewide tie, and the amber dot is where things stand now. Hover a square for its numbers.

Explore

The five bellwethers
How to read this: each row is one county, on a scale from a big Husted lead (left) to a big Brown lead (right). The amber mark is the tie line: if every part of Ohio shifted as much as this county did, a result there would mean a statewide tie. A dot to the right of it is good news for Brown, and to the left for Husted; the colored bar shows how far each county is from the tie line, and toward whom. The gray ticks are the 2024 and 2018 results. The dot is where the polling average points until results post, then the real result. Drag a dot, tap anywhere on a row, or use the arrow keys to try your own numbers; the dot clicks onto the marks when you get close.

Drag a dot, or pick a scenario, to see who wins Ohio.

If the polls are right, Ohio–
CountyTie line 2024 Polls / your numberIf polls are right
Fine-tune the assumptions
Which parts of Ohio turn out
How much of the statewide vote each county group casts. The early-voting option tends to favor the cities, since rural Republicans often vote later or on Election Day.
Applies to counties that have counted only early votes so far, and shrinks as their Election Day votes come in. It adds to what each county did in 2022 and 2024. Republicans say they're likelier to vote on Election Day this year.
How unsure the forecast stays even after all five counties finish counting. The default, 1.5 points, is wider than this method's typical miss on past races, because a new race can break from old patterns.
Taken off the polling average until results post. Ohio's final poll averages, taken the way this page takes them, have understated Republicans in every race since 2018: by about 6 points in the 2018 governor's race and the 2020 presidential race, by 4 to 4.5 in Brown's 2018 race and the 2022 governor's race, and by 1 to 3.5 in the 2022 Senate race and both 2024 races. Ohio's own average is 4 points; the default of 2 points is that average pooled with the other states' midterm-year misses, which have run about a third of a point the other way. The next setting adjusts it for this year's early vote.
The "Where early votes are coming from" number above, times this weight, comes off the allowance when early votes are coming from more Democratic places than at this point in 2024 and goes onto it when they come from more Republican places. It is 0 by default: in 2022 and 2024, measured against the election two years earlier, that lean did not predict how the polls missed. Turnout level alone doesn't say which way polls will miss either: 2018's record midterm turnout broke toward Democrats, 2020's and 2024's broke toward Republicans. The places voting drift toward the Democrat late, not the Republican: big urban counties cast their in-person early votes last, so the mix of places voting moved 0.2 to 1.9 points toward Democratic places over the final eleven days in 2022 and 2024.
Reference

County guides

Why each county was picked and what to watch.

Cleveland and Akron test
Cuyahoga
Tie line: Brown +41.1 · Brown's home county, Cleveland
2024 Senate
Brown +37.5
2024 President
Harris +31.3
2018 Senate
Brown +45.0
Compared with Ohio
38–43 points more Democratic, every race since 2016

Why this county

Cuyahoga County (Cleveland) is where Brown lives and where Democrats bank their biggest lead. Its gap with the state is the steadiest of the five: between 38 and 43 points more Democratic in all nine statewide races since 2016. Its group is just Cuyahoga and Summit (Akron), about 15% of the statewide vote, and Brown won the pair by 30 in 2024. Summit works as a stand-in, but with it the model would have missed past statewide results by 0.7 points on average, compared with 0.26 with Cuyahoga.

What to look for

The tie line here is Brown +41: a result above it favors Brown, below it Husted. He won it by 45 in 2018, when he carried Ohio by 6.8, and by 37.5 in 2024, when he lost by 3.6. A margin in the low 40s means a close race; at 38 or less, Husted is probably ahead, and at 44 or more, Brown is probably ahead. The forecast reads Cuyahoga's margin, not its turnout. Turnout here fell from 71% in 2020 to 64% in 2024; if Cleveland's turnout looks low again, pick the "Like 2022" turnout pattern.

When results come in

Its early votes, three quarters of them mail ballots this year, should post soon after polls close at 7:30 pm. That first batch will be Brown's best number of the night. In 2022 Franklin County's first batch went 74–26 for the Democrat, who ended with about two-thirds there. Ohio publishes no results split by vote type, so the page has no Cuyahoga record of that drop and uses only the "How much more Republican Election Day votes will be" setting. Treat an early-only Cuyahoga reading as a ceiling. The board planned to finish counting around 1 am in 2024, after its November 2023 count ran to 4:40 am.

Signals so far

As of October 21 that was 25% fewer than at this point in 2024, a presidential year; statewide the drop was 35%, so Cuyahoga is holding up better than most of Ohio. 51% of its early voters last voted in a Democratic primary and 16% in a Republican one, compared with 36% and 14% of all its 2024 early voters. Summit County: 35% fewer than in 2024, with 40% Democratic primary voters to 17% Republican. Barack Obama is due to rally with Acton in Cleveland on October 24.

Best overall predictor
Butler
Tie line: Husted +15.8 · leads the big metros and suburbs, 40% of the vote
2024 Senate
Moreno +19.4
2024 President
Trump +26.3
2018 Senate
Renacci +18.1
Compared with Ohio
from 24.9 points more Republican (2018) to 15.8 (2024 Senate)

Why this county

Butler County (Hamilton, Middletown, West Chester) sits between Cincinnati and Dayton; Vance grew up in Middletown. It leads the largest group in the model: 14 counties including Franklin (Columbus), Hamilton (Cincinnati), Montgomery (Dayton), Delaware, Warren and Clermont, about 40% of the statewide vote. When the model searched for the five counties that best rebuild Ohio's last seven statewide results, Butler's swing matched this group best. As stand-ins, Warren would have missed by 0.33 points on average, Hamilton by 0.35 and Franklin by 0.49.

What to look for

The tie line here is Husted +16: a wider Husted margin favors Husted, a narrower one Brown. Moreno won it by 19.4. At Husted +15 or less, Brown is probably ahead; near Moreno's 19.4, Husted is probably ahead. Don't use Butler's 2018 result as a guide: Brown lost it by 18 that year and still won Ohio by 7, because the suburbs have moved toward Democrats since. Brown lost Butler by about the same amount in 2024 as in 2018, while his statewide margin fell 10 points. If Butler moves much more than Hamilton or Warren, switch this row to one of them.

When results come in

Early votes first, soon after 7:30 pm, then Election Day precincts. In 2020 Butler, Hamilton, Warren and Clermont posted updates every 15 minutes. Butler's early voters lean more Republican than the big cities' do, so its first batch should overstate Brown less than Cuyahoga's or Franklin's.

Signals so far

As of October 21 that was 44% fewer than at this point in 2024, the steepest drop of the five bellwethers (Ohio: 35% fewer). Counties record returned mail ballots at different speeds, so some of that gap may close. 25% of its early voters last voted in a Democratic primary and 35% in a Republican one, compared with 14% and 29% of all its 2024 early voters. Franklin County: 31% fewer than in 2024. Hamilton County: 36% fewer. Trump rallied in Vandalia, north of Dayton, on October 3.

Working-class swing test
Erie
Tie line: Husted +0.3 · a true bellwether, close to a tie
2024 Senate
Moreno +3.9
2024 President
Trump +14.1
2018 Senate
Brown +10.0
Compared with Ohio
within 4 points of the state in every race since 2016

Why this county

Erie County (Sandusky) on Lake Erie has voted within 4 points of the statewide margin in every race since 2016, and within 0.3 points in 2024's Senate race. It leads 21 industrial and lakeshore counties including Lucas (Toledo), Stark (Canton), Lorain, Lake, Mahoning (Youngstown), Trumbull and Wood, about 23% of the statewide vote. This is where Brown's appeal to union and working-class voters mattered most: he won the group by 10 in 2018 and lost it by 6 in 2024, while Harris lost it by 15. Mahoning went from Brown +21 in 2018 to an even split in 2024.

What to look for

The tie line here is Husted +0.3, almost a tie: a Husted margin above it favors Husted, anything less Brown. Brown won it by 10 in 2018 and lost it by 3.9 in 2024. A Brown win of 3 or more means Brown is probably ahead in Ohio; a Husted margin of 4 or more, like 2024, means Husted is probably ahead. Lorain, the Democratic-leaning stand-in, has a tie line of Brown +8.4.

When results come in

Erie is small (about 39,000 votes in 2024), so its early votes post right after 7:30 pm and its precincts follow quickly. Like everywhere in Ohio, the early batch leans Democratic; the page marks Erie early-only until its first precinct reports and expects it to move toward Husted after that.

Signals so far

As of October 21 that was 28% fewer than at this point in 2024 (Ohio: 35% fewer). 31% of its early voters last voted in a Democratic primary and 26% in a Republican one, compared with 20% and 25% of all its 2024 early voters. Mahoning County was down only 10% from 2024, the smallest drop of any large Ohio county; Trump rallied there, in Youngstown, with Husted and Ramaswamy on October 12. Lorain County: 27% fewer.

Rural Ohio test
Wayne
Tie line: Husted +27.1 · stands in for 41 rural and Appalachian counties
2024 Senate
Moreno +30.7
2024 President
Trump +39.3
2018 Senate
Renacci +22.2
Compared with Ohio
22–29 points more Republican since 2016

Why this county

41 rural and small-town counties cast about 18% of the Ohio vote, from Licking and Richland (Mansfield, Brown's hometown) to the Appalachian southeast. Moreno won them by 39 in 2024; Renacci won them by 23.5 in 2018. Every point either candidate gains there is worth about a sixth of a point statewide. Wayne County (Wooster, Orrville) has moved most like the group as a whole: as stand-ins, Licking would have missed by 0.32 points on average, Knox by 0.6 and Darke by 0.67.

What to look for

The tie line here is Husted +27: a wider Husted margin favors Husted, a narrower one Brown. Renacci won it by 22 against Brown in 2018. At Husted +33 or more, rural Ohio has moved further toward Republicans, and Husted is likely ahead unless Brown makes much bigger gains in the cities and suburbs. Brown ran 8.5 points ahead of Harris in Wayne in 2024; whether those crossover voters stay with him decides much of the rural vote. Licking County, east of Columbus near the New Albany data-center cluster, is the stand-in to pick if the fight over data centers and electric bills seems to be moving votes.

When results come in

Early votes soon after 7:30 pm, then precincts. Rural early voters are a smaller and more Republican slice than in the cities (in 2024 about a third of Wayne's early voters had a Republican primary record), so the early-to-final move here should be smaller than in Cuyahoga. Leaving this group out hurts the forecast a lot, so wait for Wayne before trusting a call.

Signals so far

As of October 21 that was 28% fewer than at this point in 2024 (Ohio: 35% fewer). 26% of its early voters last voted in a Democratic primary and 34% in a Republican one, compared with 15% and 33% of all its 2024 early voters. Licking County: 37% fewer than in 2024. Knox County: 38% fewer.

Small-city test
Clark
Tie line: Husted +17.1 · Springfield, the bellwether that has shifted most since 2018
2024 Senate
Moreno +20.7
2024 President
Trump +29.4
2018 Senate
Renacci +1.9
Compared with Ohio
from 8.7 points more Republican (2018 Senate) to 18.2 (2024 President)

Why this county

Clark County (Springfield), between Dayton and Columbus, leads the smallest group: 10 small-city and northwest farm counties including Allen (Lima), Muskingum (Zanesville), Seneca, Fulton and Williams, about 5% of the statewide vote. No bellwether has moved further from Brown. He nearly won Clark in 2018 (Renacci +1.9) and lost it by 20.7 in 2024, a 19-point drop while his statewide margin fell 10. Springfield's Haitian community, about 15,000 people, was at the center of Trump's 2024 debate claims; in June the Supreme Court let the administration end their temporary legal status, and Brown has called for an extension.

What to look for

The tie line here is Husted +17: a wider Husted margin favors Husted, a narrower one Brown. A margin near Moreno's 20.7 means the county is voting as it did in 2024; under 12, it is shifting toward Brown's 2018 showing. The group is small, so each point here is worth only about a twentieth of a point statewide: read it as a signal of how working-class voters outside the big metros are moving.

When results come in

Early votes soon after 7:30 pm, then precincts through the evening. Allen, Muskingum and Fulton are the stand-ins; all three were 31 points more Republican than Ohio in 2024's Senate race.

Signals so far

As of October 21 that was 38% fewer than at this point in 2024 (Ohio: 35% fewer). Its early voters split evenly by primary history, 32% Democratic and 32% Republican, compared with 19% and 32% of all its 2024 early voters. Allen County: 40% fewer than in 2024.

Reference

Timeline

When results usually arrive, Eastern time.

Oct 6 – Nov 1

Early voting. Watch each group's turnout in the early voting tracker above; it refreshes every morning from the Secretary of State's file, which runs a day behind. Early in-person voting ends Sunday, November 1. The last day to request a mail ballot is October 27, and this year mail ballots must reach the county board by 7:30 pm on Election Day: a postmark no longer counts. More early voters this year last voted in a Democratic primary than in a Republican one, partly because May's Democratic Senate primary drew more votes than the Republican one.

Nov 3 · 7:30 pm

Polls close; early votes post first. Ohio counties prepare early and mail ballots before Election Day so they can report them right after 7:30; in 2020 the state required them by 8 pm. This batch leans heavily Democratic: in 2022 Franklin County's first batch went 74–26 for Ryan, who ended with about two-thirds there and lost the state by 6. Expect Brown to lead early almost everywhere. In Live data mode the page marks counties with no precincts in as early-only and expects them to move toward Husted, but Ohio has no county-by-county record of how far.

8:30–10:00 pm

Election Day precincts. Counties add precincts through the evening; in 2020 Butler, Hamilton, Warren and Clermont posted every 15 minutes. Margins move toward Husted as they do, and the forecast's early-vote adjustment for each county shrinks as its precincts report. Mail ballots that arrived on Election Day are counted tonight too.

10:00 pm–1:00 am

Most counties finish. In 2024 Decision Desk HQ called the Senate race at 10:58 pm and the Associated Press at 11:28 pm, with over 90% of the vote counted. Cuyahoga is usually among the last big counties: its board aimed to finish around 1 am in 2024, after a November 2023 count that ran to 4:40 am. Every county's election-night count must include all eligible Election Day and early ballots it has.

Wednesday–Saturday

Provisional ballots wait. Provisional voters have until Saturday, November 7 to show ID or fix a problem at their county board, and military and overseas ballots can still arrive through that day. Other mail ballots get no grace period this year; in 2024 about 9,500 arrived in the four days after the election and counted. After 2024's election night, 137,879 provisional ballots were outstanding statewide, about 2% of the vote. The forecast doesn't add any of these. If the race is within a point, the final count can move it.

Nov 8–24

The official count. County boards start the official canvass between November 8 and 18 and must finish by November 24; the Secretary of State then certifies the statewide result (December 2 in 2024). If the final margin is under a quarter of a percentage point, about 10,000 votes at 2022's turnout, Ohio law orders an automatic recount.