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

MD-7 · House

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

Safe D
100%
Kweisi Mfume
Democrat
0%
Scott Collier
Republican
Expected margin and its 90% range
R+40R+20R+10EvenD+10D+20D+40D+67.4
What moves this district (points of margin; blue toward the Democrat, red toward the Republican)
2024 presidential lean+49.1
2024 House lean+15.1
experience gap+12.2
PAC money balance+8.2
2020 presidential lean+2.9

The district, in brief

Maryland's 7th district includes most of Baltimore and some of its suburbs. The lines are the map first used in 2022 and were not redrawn for this cycle. On these lines the facts record a 2024 presidential two-party margin of 60.5 points for the Democrat.

The incumbent is Democrat Kweisi Mfume, re-elected with 80.3% of the vote in 2024. He won the Democratic primary with 70.1%, defeating Mark Conway, a Baltimore city councilor from the 4th district since 2020, along with Tashi Davis, a project manager who ran for the seat in 2022 and 2024, and Theo Gillespie, a school bus driver. The Republican nominee is Scott Collier, who was unopposed in his primary with 5,749 votes; the text gives no background for him. As of June 30, 2026 Mfume had raised $415,174 with $702,810 on hand, Conway $203,673; the text lists no report for Collier.

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 (April 10, 2025). The text records no district polls.

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
Kweisi Mfume (D)The incumbent is Democrat Kweisi Mfume, who was re-elected with 80.3% of the vote in 2024.
Open seat
noThe incumbent is Democrat Kweisi Mfume
Democratic nominee
Kweisi MfumeKweisi Mfume, incumbent U.S. representative
Republican nominee
Scott Colliercandidate: Scott Collier party: Republican Party (United States) votes: 5,749 percentage: 100.0
Democrat's background
incumbent U.S. representativeKweisi Mfume, incumbent U.S. representative
Last result
Mfume re-elected with 80.3% in 2024who was re-elected with 80.3% of the vote in 2024
Lines
District includes most of Baltimore and some of its suburbs; lines not redrawn for 2026The 7th district includes most of Baltimore and some of its suburbs.
Primaries
Mfume won the Democratic primary with 70.1% over Baltimore city councilor Mark Conway, Tashi Davis and Theo Gillespie; Collier was unopposed in the Republican primary with 100.0%candidate: Kweisi Mfume (incumbent) party: Democratic Party (US) votes: 57,793 percentage: 70.1
Raters
Decision Desk HQ: D (July 14, 2026); Cook: D (Feb 6, 2025); Inside Elections: D (Mar 7, 2025); Sabato's Crystal Ball: D (Apr 10, 2025)Decision Desk HQ D July 14, 2026 The Cook Political Report D February 6, 2025
Money
As of June 30, 2026: Mfume raised $415,174 with $702,810 on hand; no report is listed for CollierKweisi Mfume (D) $415,174 $406,290 $702,810
Also
Mfume's main primary challenger was Mark Conway, Baltimore city councilor from the 4th district since 2020, who raised $203,673Mark Conway, Baltimore city councilor from the 4th district (2020–present)
Collier received 5,749 votes in the Republican primary against 57,793 for Mfume alone in the Democratic primaryvotes: 5,749 percentage: 100.0 votes: 5,749 percentage: 100.0

Not in the source: The text gives no background or candidate description for the Republican nominee Scott Collier, and no fundraising report for him.; The Democratic primary results table is truncated after Mfume's line, so the shares for Conway, Davis and Gillespie are not given.; The text gives no presidential results for the district; the 2024 baseline comes from the facts only.; No district polls are recorded, and the model's basis says no district polls.; The endorsements section names no endorsers.; No general-election ratings finer than 'D' are given (no Lean/Likely/Safe).

Read from the district's section of Wikipedia's state page (CC BY-SA), archived as 088007af2650; 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

Kweisi Mfume (Democrat), in this chamber since 1987, 9 terms. Committees: House Committee on Oversight and Government Reform; House Committee on Foreign Affairs.

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+60.3D+62.4D+59.0

A shift of 1.3 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?

Group (adults 25+)Share of adultsTurnout 2020 / midtermShare of a midterm electorateEst. Democratic share, 2020
White, no degree19%61% / 49%17%38%
White, degree16%83% / 76%22%79%
Black55%68% / 52%54%97%
Hispanic5%45% / 22%2%79%
Asian3%51% / 30%2%86%
Other / multiracial3%69% / 54%3%79%

Of about 531,234 adults 25 and over. In 2020 the district voted 82.3% Democratic (two-party) for president. With the same preferences and a 2022-style midterm turnout, it would vote 81.8% Democratic: the midterm electorate alone moves the margin 0.9 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

CandidateRaisedCash on handPAC shareSelf-fundedOutside $ forOutside $ against
Mfume, Kweisi (DEM)
incumbent
$415,174$702,81056%0%$0$0
Conway, Mark Steven Mr. Jr. (DEM)
challenger · not on our roster
$203,673$12,5901%0%$173$0
Anthony, Hadley Ophelia Ms. (DEM)
challenger · not on our roster
$1,906$-6930%0%$0$0

FEC bulk candidate summaries through June 30, 2026; $173 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+31.9%34.9%-3.1 pts
White, non-Hispanic29.5%58.2%-28.7 pts
Black, non-Hispanic55.0%12.0%+43.1 pts
Hispanic or Latino8.4%19.0%-10.6 pts
Asian, non-Hispanic2.9%5.8%-2.9 pts
Foreign-born9.7%13.9%-4.2 pts
Median age36.439.2-2.8
Median household income$61,623$84,362$-22,739
Median home value$227,300$379,737$-152,437
Owner-occupied homes50.9%65.1%-14.2 pts
Unemployment, July 2026 (BLS county data)5.3%4.4%+0.9 pts
Change in unemployment, past 12 months-0.0 pts——
Change since the last election (24 months)+0.8 pts——
Unemployment (ACS)6.4%5.2%+1.2 pts
Federal government workers5.8%2.6%+3.2 pts
Work from home13.8%13.5%+0.4 pts
Households on SNAP22.7%11.8%+11.0 pts
Households with Social Security income28.7%31.2%-2.5 pts
Households with public assistance income4.9%2.7%+2.3 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$72,208$73,248$-1,040
Per-capita income growth since 2019, nominal, 202436.7%32.0%+4.8 pts
Government and other transfers, share of income, 202426.4%19.6%+6.8 pts
Social Security, share of income, 20225.2%5.8%-0.6 pts
Medicare, share of income, 20225.5%4.5%+1.1 pts
Medicaid, share of income, 202210.2%4.0%+6.3 pts
SNAP, share of income, 20221.4%0.6%+0.8 pts
Earned Income Tax Credit, share of income, 20220.4%0.4%+0.1 pts
Veterans' benefits, share of income, 20220.6%0.9%-0.3 pts
Federal civilian jobs, share of all jobs, 20222.5%1.3%+1.2 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%
Kweisi Mfume
run 6f211e6f · house_district_prior/0.2.0 · as of 2026-10-02
+67.4
expected margin, D-R
run 6f211e6f · house_district_prior/0.2.0 · as of 2026-10-02

The 90% interval runs from +53.7 to +81.0 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+62.0): 49.1 pts toward the Democrat; 2024 House lean (D+67.5): 15.1 pts toward the Democrat; experience gap (+4 levels, D minus R): 12.2 pts toward the Democrat; PAC money balance: 8.2 pts toward the Democrat; 2020 presidential lean (D+60.1): 2.9 pts toward the Democrat.

How sure is it, and of what?

Total sd 8.36 points, made of the seat's own volatility 92%, correlated polling error 8%. 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).