Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

What's the difference?

Maryland › U.S. House of Representatives · November 3, 2026 · Updated Oct 16, 2026

Maryland's 4th District

Ivey is very likely to win: Ivey wins in more than 99 of every 100 simulations.

Ivey (D)
>99%
chance of winning
McDermott (R)
<1%
Average margin
D+83.3
80% of outcomes
D+74 to D+93
Partisan lean
D+79
Polls
No pollsmodel only

Ivey is very likely to win: Ivey wins in more than 99 of every 100 simulations.

Ivey (D)
>99%
chance of winning
McDermott (R)
<1%
Average margin
D+85.0
80% of outcomes
D+73 to D+98
Partisan lean
D+79
Polls
No pollsmodel only

Range of outcomes

Final margin across our simulations; the white dashes mark the middle 80%.

D+83.3R+100R+50EvenD+50D+100
D+85.0R+100R+50EvenD+50D+100

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Ivey >99%McDermott <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

0%25%50%75%100%AugSepOctNovNov 3Ivey >99%McDermott <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

The candidates

DemocraticIncumbent

Glenn Ivey

Incumbent U.S. representative

Experience
Statewide office or Congress
Raised
$855.3K
From individuals
$399.3K
Spent
$677.6K
Cash on hand
$483.1K

Money: FEC, through Sep 30, 2026.

Profile and career · Wikipedia

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast; federal races run in it
Swing reaching this office
78%Of a shift in the environment, from past House races since 2016
Mid-Atlantic adjustment
+0.5How House races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 78% of the environment andthe Mid-Atlantic adjustmentD+85.1Fundamentals modelAdds incumbency, past results, money andexperienceD+83.3Polls in similar placesPolling of similar races in Maryland andlook-alike placesD+83.4Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+83.3Pulse forecastPolls (and polling of similar places) only, todayD+85.0

Each estimate is a margin before national and statewide uncertainty is simulated. Horizon blends polls, fundamentals and a little of the similar-places estimate, weighting each by how precise it is; Pulse uses polls and similar places only.

Fundamentals inputs
Incumbency (+1 D, −1 R)1
Fundraising edge (log ratio of individual money)3.67
Elected-experience edge1
First-term incumbent0
Seat's last result vs. expectation1.07
Incumbent's last result vs. expectation1.07

Polls

No public polls of this race. The forecast relies on fundamentals and on polling of similar places.

The district

Lean D+79: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+84.2D+82.0 vs. nation2020 presidentD+82.4D+77.8 vs. nation2024 presidentD+75.7D+77.2 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
763,478
People per km²
1,314
Adults with a B.A.+
34%
White, no degree
4%of adults
  • White 10%
  • Hispanic 27%
  • Black 54%
  • Asian 5%
  • Other / multiracial 4%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024

270,970 votes · D+77.4
✓ Glenn Ivey (D)88.4%
George McDermott (R)11.2%

2024 President Vote in this district

274,012 two-party votes · D+75.7 · D+77.2 vs. the nation
✓ Kamala Harris (D)87.8%
Donald Trump (R)12.2%

2022

160,009 votes · D+80.7
✓ Glenn F Ivey (D)90.1%
Jeff Warner (R)9.7%

2020 Earlier district lines

354,529 votes · D+59.5
✓ Anthony G Brown (D)79.6%
George E McDermott (R)20.2%

2020 President Vote in this district

357,848 two-party votes · D+82.4 · D+77.8 vs. the nation
✓ Joe Biden (D)91.2%
Donald Trump (R)8.8%

2018 Earlier district lines

268,583 votes · D+59.4
✓ Anthony G Brown (D)78.1%
George McDermott (R)19.9%
Dave Bishop (L)2.0%

2016 Earlier district lines

320,650 votes · D+55.1
✓ Anthony G Brown (D)74.1%
George E McDermott (R)21.4%
Kamesha T Clark (G)2.6%
Benjamin Lee Krause (L)1.8%

2016 President Vote in this district

371,301 two-party votes · D+84.2 · D+82.0 vs. the nation
✓ Hillary Clinton (D)92.1%
Donald Trump (R)7.9%