FutureBallotU.S. election forecasts, with every number traced to its source

MN-4 · House

election-day forecast · ground-up model · as of 2026-10-02

Safe D
100%
Betty McCollum
Democrat
0%
Paul Wikstrom
Republican
Expected margin and its 90% range
R+40R+20R+10EvenD+10D+20D+40D+45.0
What moves this district (points of margin; blue toward the Democrat, red toward the Republican)
2024 presidential lean+28.5
experience gap+12.2
2024 House lean+10.7
PAC money balance+8.3
2022 House lean+2.0

The district, in brief

Minnesota's 4th district is the Saint Paul half of the Twin Cities metro area, taking in Ramsey County and parts of Washington County. The lines are the map first used in 2022 and are not redrawn for this cycle.

The incumbent is Democrat Betty McCollum, reelected with 67.6% of the vote in 2024. She won the DFL primary 85.8% to 14.2% over Aswar Rahman, a humanitarian who ran for mayor of Minneapolis in 2017. The Republican nominee is Paul Wikstrom, an engineer who was the 2024 nominee for Minnesota House District 40B; he took 72.6% in his primary against Paul Xiong (16.9%) and Gene Rechtzigel (10.5%). As of March 31, 2026 McCollum had raised $1,044,714 with $669,540 on hand. The text lists no finance report for Wikstrom; the only Republican figure is Xiong's $36,317 raised as of June 30, 2026.

The facts record Democratic two-party margins of 34.73 points in 2024 and 35.38 in 2022. Every rater listed calls the seat D: Decision Desk HQ (July 14, 2026), the Cook Political Report (February 6, 2025), Inside Elections (March 7, 2025) and Sabato's Crystal Ball (July 15, 2025).

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

Incumbent
Betty McCollum (D)The incumbent is Democrat Betty McCollum, who was reelected with 67.6% of the vote in 2024.
Open seat
noThe incumbent is Democrat Betty McCollum
Democratic nominee
Betty McCollumBetty McCollum, incumbent U.S. representative
Republican nominee
Paul WikstromPaul Wikstrom, engineer and nominee for Minnesota House of Representatives District 40B in 2024
Democrat's background
incumbent U.S. representativeBetty McCollum, incumbent U.S. representative
Republican's background
engineer; 2024 nominee for Minnesota House District 40BPaul Wikstrom, engineer and nominee for Minnesota House of Representatives District 40B in 2024
Last result
McCollum reelected with 67.6% in 2024who was reelected with 67.6% of the vote in 2024
Primaries
McCollum beat Aswar Rahman 85.8% to 14.2% in the DFL primary; Wikstrom won the Republican primary with 72.6% over Paul Xiong (16.9%) and Gene Rechtzigel (10.5%)candidate: Paul Wikstrom party: Republican Party (United States) votes: 20,628 percentage: 72.6
Raters
Decision Desk HQ: D (July 14, 2026); Cook: D (Feb 6, 2025); Inside Elections: D (March 7, 2025); Sabato's Crystal Ball: D (July 15, 2025)Decision Desk HQ D July 14, 2026 The Cook Political Report D February 6, 2025
Money
As of March 31, 2026: McCollum raised $1,044,714, spent $930,092, $669,540 on hand; the only Republican report listed is eliminated candidate Paul Xiong ($36,317 raised as of June 30, 2026)Betty McCollum (DFL) $1,044,714 $930,092 $669,540
Also
Aswar Rahman, a 2017 Minneapolis mayoral candidate, was eliminated in the DFL primaryAswar Rahman, humanitarian and candidate for mayor of Minneapolis in 2017

Not in the source: The text gives no presidential vote shares for the district.; No fundraising report is listed for the Republican nominee Paul Wikstrom.; Ratings are given only as 'D' with no Lean/Likely/Safe gradation.; No district polls in the text, and the model's basis says none.; Endorsement sections are empty.

Read from the district's section of Wikipedia's state page (CC BY-SA), archived as f61d1cbce5da; 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

Betty McCollum (Democrat), in this chamber since 2001, 13 terms. Committees: House Committee on Appropriations.

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

Two-party margin201620202024
PresidentD+32.9D+36.9D+34.6

A shift of 1.8 points toward the Democrats 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?

Group (adults 25+)Share of adultsTurnout 2020 / midtermShare of a midterm electorateEst. Democratic share, 2020
White, no degree34%70% / 54%30%31%
White, degree38%94% / 84%53%88%
Black9%50% / 49%7%95%
Hispanic5%47% / 34%3%75%
Asian11%41% / 22%4%84%
Other / multiracial3%74% / 61%3%79%

Of about 476,781 adults 25 and over. In 2020 the district voted 69.1% Democratic (two-party) for president. With the same preferences and a 2022-style midterm turnout, it would vote 70.5% Democratic: the midterm electorate alone moves the margin 2.7 points toward Democrats. 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

CandidateRaisedCash on handPAC shareSelf-fundedOutside $ forOutside $ against
Mccollum, Betty (DEM)
incumbent
$1,251,583$498,69737%0%$10$0
Xiong, Paul (REP)
challenger · not on our roster
$60,577$21,0740%0%$0$0
Wikstrom, Paul (REP)
challenger
$28,031$2,2050%0%$0$0

FEC bulk candidate summaries through July 22, 2026; $10 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

MeasureDistrictNationDifference
Bachelor's degree or higher, 25+47.5%34.9%+12.6 pts
White, non-Hispanic63.2%58.2%+5.0 pts
Black, non-Hispanic10.3%12.0%-1.7 pts
Hispanic or Latino7.4%19.0%-11.6 pts
Asian, non-Hispanic13.3%5.8%+7.5 pts
Foreign-born14.0%13.9%+0.1 pts
Median age37.039.2-2.2
Median household income$88,368$84,362$+4,006
Median home value$331,700$379,737$-48,037
Owner-occupied homes65.5%65.1%+0.4 pts
Unemployment, July 2026 (BLS county data)4.6%4.4%+0.2 pts
Change in unemployment, past 12 months+0.7 pts——
Change since the last election (24 months)+1.1 pts——
Unemployment (ACS)4.4%5.2%-0.8 pts
Federal government workers1.6%2.6%-1.0 pts
Work from home19.4%13.5%+5.9 pts
Households on SNAP9.6%11.8%-2.2 pts
Households with Social Security income28.1%31.2%-3.1 pts
Households with public assistance income4.1%2.7%+1.5 pts
Moved in from another state, past year2.3%2.3%-0.0 pts
Gini index0.500.440.06
Per-capita personal income (BEA), 2024$75,309$73,248$+2,061
Per-capita income growth since 2019, nominal, 202431.1%32.0%-0.9 pts
Government and other transfers, share of income, 202418.2%19.6%-1.3 pts
Social Security, share of income, 20225.1%5.8%-0.7 pts
Medicare, share of income, 20223.3%4.5%-1.2 pts
Medicaid, share of income, 20225.3%4.0%+1.3 pts
SNAP, share of income, 20220.7%0.6%+0.0 pts
Earned Income Tax Credit, share of income, 20220.2%0.4%-0.1 pts
Veterans' benefits, share of income, 20220.4%0.9%-0.5 pts
Federal civilian jobs, share of all jobs, 20220.5%1.3%-0.8 pts
Military jobs, share of all jobs, 20220.4%0.9%-0.5 pts

ACS 5-year 2023, the Census Bureau's own tabulation of this district (118th Congress lines). 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?

>99%
Betty McCollum
run 6f211e6f · house_district_prior/0.2.0 · as of 2026-10-02
+44.9
expected margin, D-R
run 6f211e6f · house_district_prior/0.2.0 · as of 2026-10-02

The 90% interval runs from +31.3 to +58.5 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: 2024 presidential lean (D+38.0): 28.5 pts toward the Democrat; experience gap (+4 levels, D minus R): 12.2 pts toward the Democrat; 2024 House lean (D+37.4): 10.7 pts toward the Democrat; PAC money balance: 8.3 pts toward the Democrat; 2022 House lean (D+37.8): 2.0 pts toward the Democrat.

How sure is it, and of what?

Total sd 8.26 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).