Maryland's 1st Congressional District election, 2024

	2026 → ← 2022
Maryland's 1st Congressional District
	Democratic primary; Republican primary; General election
Election details
	Filing deadline: February 9, 2024
	Primary: May 14, 2024; General: November 5, 2024
How to vote
	Poll times: 7 a.m. to 8 p.m.; Voting in Maryland
Race ratings
	Cook Political Report: Solid Republican; DDHQ and The Hill: Safe Republican; Inside Elections: Solid Republican; Sabato's Crystal Ball: Safe Republican
Ballotpedia analysis
	U.S. Senate battlegrounds; U.S. House battlegrounds; Federal and state primary competitiveness; Ballotpedia's Election Analysis Hub, 2024
See also
	Maryland's 1st Congressional District; U.S. Senate • 1st • 2nd • 3rd • 4th • 5th • 6th • 7th • 8th; Maryland elections, 2024; U.S. Congress elections, 2024; U.S. Senate elections, 2024; U.S. House elections, 2024; Alabama U.S. House racesAlaska U.S. House racesArizona U.S. House racesArkansas U.S. House racesCalifornia U.S. House racesColorado U.S. House racesConnecticut U.S. House racesDelaware U.S. House racesFlorida U.S. House racesGeorgia U.S. House racesHawaii U.S. House racesIdaho U.S. House racesIllinois U.S. House racesIndiana U.S. House racesIowa U.S. House racesKansas U.S. House racesKentucky U.S. House racesLouisiana U.S. House racesMaine U.S. House racesMaryland U.S. House racesMassachusetts U.S. House racesMichigan U.S. House racesMinnesota U.S. House racesMississippi U.S. House racesMissouri U.S. House racesMontana U.S. House racesNebraska U.S. House racesNevada U.S. House racesNew Hampshire U.S. House racesNew Jersey U.S. House racesNew Mexico U.S. House racesNew York U.S. House racesNorth Carolina U.S. House racesNorth Dakota U.S. House racesOhio U.S. House racesOklahoma U.S. House racesOregon U.S. House racesPennsylvania U.S. House racesRhode Island U.S. House racesSouth Carolina U.S. House racesSouth Dakota U.S. House racesTennessee U.S. House racesTexas U.S. House racesUtah U.S. House racesVermont U.S. House racesVirginia U.S. House racesWashington U.S. House racesWest Virginia U.S. House racesWisconsin U.S. House racesWyoming U.S. House racesSubmit

Maryland 2024 elections

U.S. Senate • U.S. House • Supreme court • Appellate courts • State ballot measures • School boards • Municipal • How to run for office

All U.S. House districts, including the 1st Congressional District of Maryland, held elections in 2024. The general election was November 5, 2024. The primary was May 14, 2024. The filing deadline was February 9, 2024. The outcome of this race affected the partisan balance of the U.S. House of Representatives in the 119th Congress. All 435 House districts were up for election.

At the time of the election, Republicans held a 220-212 majority with three vacancies.^[1] As a result of the election, Republicans retained control of the U.S. House, winning 220 seats to Democrats' 215.^[2] To read more about the 2024 U.S. House elections, click here.

In the 2022 election in this district, the Republican candidate won 54.4%-43.1%. Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Donald Trump (R) would have defeated Joe Biden (D) 56.3%-41.7%.^[3]

For more information about the primaries in this election, click on the links below:

Candidates and election results

General election

General election for U.S. House Maryland District 1

Incumbent Andrew Harris defeated Blane Miller III and Joshua O'Brien in the general election for U.S. House Maryland District 1 on November 5, 2024.

	Candidate	%	Votes
✔	Andrew Harris (R)	59.6	246,356
	Blane Miller III (D)	37.5	154,985
	Joshua O'Brien (L)	2.7	11,053
	Other/Write-in votes	0.2	675

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 413,069
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
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Withdrawn or disqualified candidates

Christen Johnson (Unaffiliated)

Democratic primary election

Democratic primary for U.S. House Maryland District 1

Blane Miller III defeated Blessing Oluwadare in the Democratic primary for U.S. House Maryland District 1 on May 14, 2024.

	Candidate	%	Votes
✔	Blane Miller III	60.8	26,845
	Blessing Oluwadare	39.2	17,289

	There were no incumbents in this race. The results have been certified. Source	Total votes: 44,134
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
Do you want a spreadsheet of this type of data? Contact our sales team.

Withdrawn or disqualified candidates

Isaac Toyos (D)

Republican primary election

Republican primary for U.S. House Maryland District 1

Incumbent Andrew Harris defeated Christopher Bruneau and Michael Lemon in the Republican primary for U.S. House Maryland District 1 on May 14, 2024.

	Candidate	%	Votes
✔	Andrew Harris	77.4	57,010
	Christopher Bruneau	16.2	11,946
	Michael Lemon	6.4	4,714

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 73,670
= candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.
Do you want a spreadsheet of this type of data? Contact our sales team.

Withdrawn or disqualified candidates

Blessing Oluwadare (R)

Candidate profiles

There were no candidate profiles created for this race. Candidate profiles would have appeared here as candidates completed Ballotpedia's Candidate Connection survey.

Voting information

See also: Voting in Maryland

Election information in Maryland: Nov. 5, 2024, election.

What was the voter registration deadline?

In-person: Nov. 5, 2024
By mail: Postmarked by Oct. 15, 2024
Online: Oct. 15, 2024

Was absentee/mail-in voting available to all voters?

Yes

What was the absentee/mail-in ballot request deadline?

In-person: Nov. 5, 2024
By mail: Received by Oct. 29, 2024
Online: Nov. 1, 2024

What was the absentee/mail-in ballot return deadline?

In-person: Nov. 5, 2024
By mail: Postmarked by Nov. 5, 2024

Was early voting available to all voters?

Yes

What were the early voting start and end dates?

Oct. 24, 2024 to Oct. 31, 2024

Were all voters required to present ID at the polls? If so, was a photo or non-photo ID required?

N/A

When were polls open on Election Day?

7:00 a.m. - 8:00 p.m. (EST)

Ballotpedia's Candidate Connection survey responses

Ballotpedia asks all federal, state, and local candidates to complete a survey and share what motivates them on political and personal levels. Candidates are asked three required questions for this survey, but they may answer additional optional questions as well.

No candidate in this race completed Ballotpedia's Candidate Connection survey.

Campaign finance

Name	Party	Receipts*	Disbursements**	Cash on hand	Date
Andrew Harris	Republican Party	$1,361,364	$1,419,585	$754,936	As of December 31, 2024
Blane Miller III	Democratic Party	$0	$0	$0	Data not available***
Blessing Oluwadare	Democratic Party	$0	$0	$0	Data not available***
Christopher Bruneau	Republican Party	$72,479	$70,606	$0	As of September 30, 2024
Michael Lemon	Republican Party	$0	$0	$0	Data not available***
Joshua O'Brien	Libertarian Party	$0	$0	$0	Data not available***
Source: Federal Elections Commission, "Campaign finance data," 2024. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC). * According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee." According to the FEC, a disbursement "is a purchase, payment, distribution, loan, advance, deposit or gift of money or anything of value to influence a federal election," plus other kinds of payments not made to influence a federal election. * Candidate either did not report any receipts or disbursements to the FEC, or Ballotpedia did not find an FEC candidate ID.

General election race ratings

See also: Race rating definitions and methods

Ballotpedia provides race ratings from four outlets: The Cook Political Report, Inside Elections, Sabato's Crystal Ball, and DDHQ/The Hill. Each race rating indicates if one party is perceived to have an advantage in the race and, if so, the degree of advantage:

Safe and Solid ratings indicate that one party has a clear edge and the race is not competitive.
Likely ratings indicate that one party has a clear edge, but an upset is possible.
Lean ratings indicate that one party has a small edge, but the race is competitive.^[4]
Toss-up ratings indicate that neither party has an advantage.

Race ratings are informed by a number of factors, including polling, candidate quality, and election result history in the race's district or state.^[5]^[6]^[7]

Race ratings: Maryland's 1st Congressional District election, 2024
Race tracker	Race ratings
	November 5, 2024	October 29, 2024	October 22, 2024	October 15, 2024
The Cook Political Report with Amy Walter	Solid Republican	Solid Republican	Solid Republican	Solid Republican
Decision Desk HQ and The Hill	Safe Republican	Safe Republican	Safe Republican	Safe Republican
Inside Elections with Nathan L. Gonzales	Solid Republican	Solid Republican	Solid Republican	Solid Republican
Larry J. Sabato's Crystal Ball	Safe Republican	Safe Republican	Safe Republican	Safe Republican
Note: Ballotpedia reviews external race ratings every week throughout the election season and posts weekly updates even if the media outlets have not revised their ratings during that week.

Ballot access

The table below details filing requirements for U.S. House candidates in Maryland in the 2024 election cycle. For additional information on candidate ballot access requirements in Maryland, click here.

Filing requirements for U.S. House candidates, 2024
State	Office	Party	Signatures required	Filing fee	Filing deadline	Source
Maryland	U.S. House	Ballot-qualified party	N/A	$100.00	2/9/2024	Source
Maryland	U.S. House	Unaffiliated	1% of the eligible voters for the district	$100.00	8/5/2024	Source

District analysis

Click the tabs below to view information about voter composition, past elections, and demographics in both the district and the state.

District map - A map of the district in place for the election.
Competitiveness - Information about the competitiveness of 2024 U.S. House elections in the state.
Presidential elections - Information about presidential elections in the district and the state.
State party control - The partisan makeup of the state's congressional delegation and state government.

District map

Competitiveness
Presidential elections

State party control

Below was the map in use at the time of the election. Click the map below to enlarge it.

See also: Primary election competitiveness in state and federal government, 2024

This section contains data on U.S. House primary election competitiveness in Maryland.

Maryland U.S. House competitiveness, 2014-2024
Office	Districts/ offices	Seats	Open seats	Candidates	Possible primaries	Contested Democratic primaries	Contested Republican primaries	% of contested primaries	Incumbents in contested primaries	% of incumbents in contested primaries
2024	8	8	3	87	16	8	6	87.5%	5	100.0%
2022	8	8	1	65	16	8	7	93.8%	6	85.7%
2020	8	8	0	79	16	8	8	100.0%	8	100.0%
2018	8	8	1	55	16	7	7	87.5%	6	85.7%
2016	8	8	2	60	16	7	8	93.8%	5	83.3%
2014	8	8	0	35	16	6	6	75.0%	6	75.0%

Post-filing deadline analysis

The following analysis covers all U.S. House districts up for election in Maryland in 2024. Information below was calculated on March 19, 2024, and may differ from information shown in the table above due to candidate replacements and withdrawals after that time.

Eighty-seven candidates ran for Maryland’s eight U.S. House districts, including 58 Democrats and 29 Republicans. That’s 10.88 candidates per district, more than in the previous three election cycles. There were 8.12 candidates per district in 2022, 9.87 candidates per district in 2020, and 6.87 in 2018.

The total number of candidates who ran for the U.S. House in 2024 is also higher than any other year this decade.

Three districts—the 2nd, the 3rd, and the 6th—were open, meaning no incumbents ran. That’s the most open districts in an election cycle this decade.

Rep. David Trone (D-6th) did not run for re-election in order to run for the U.S. Senate, while Reps. Dutch Ruppersberger (D-2nd) and John Sarbanes (D-3rd) retired from public office.

Thirty-one candidates—22 Democrats and nine Republicans—ran for the open 3rd Congressional District, the most candidates that ran for a district in 2024.

Fourteen primaries—eight Democratic and six Republican—were contested in 2024. Fifteen primaries were contested in 2022, 16 primaries were contested in 2020, and 14 were in 2018.

Five incumbents—four Democrats and one Republican—faced primary challengers in 2024. That's fewer than in 2022, when six incumbents faced challengers, in 2020 when eight incumbents faced challengers, and in 2018, when six did.

Candidates filed to run in the Republican and Democratic primaries in all eight districts, meaning no seats were guaranteed to either party.

Partisan Voter Index

See also: The Cook Political Report's Partisan Voter Index

Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was R+11. This meant that in those two presidential elections, this district's results were 11 percentage points more Republican than the national average. This made Maryland's 1st the 140th most Republican district nationally.^[8]

2020 presidential election results

The table below shows what the vote in the 2020 presidential election would have been in this district. The presidential election data was compiled by Daily Kos.

2020 presidential results in Maryland's 1st based on 2024 district lines
Joe Biden	Donald Trump
41.7%	56.3%

Inside Elections Baselines

See also: Inside Elections

Inside Elections' Baseline is a figure that analyzes all federal and statewide election results from the district over the past four election cycles. The results are combined in an index estimating the strength of a typical Democratic or Republican candidate in the congressional district.^[9] The table below displays the Baseline data for this district.

Inside Elections Baseline for 2024
Democratic Baseline	Republican Baseline	Difference
40.8	56.9	D+16.1

Presidential voting history

See also: Presidential election in Maryland, 2020

Maryland presidential election results (1900-2020)

21 Democratic wins
10 Republican wins

Year	1900	1904	1908	1912	1916	1920	1924	1928	1932	1936	1940	1944	1948	1952	1956	1960	1964	1968	1972	1976	1980	1984	1988	1992	1996	2000	2004	2008	2012	2016	2020
Winning Party	R	D	D	D	D	R	R	R	D	D	D	D	R	R	R	D	D	D	R	D	D	R	R	D	D	D	D	D	D	D	D

See also: Party control of Maryland state government

Congressional delegation

The table below displays the partisan composition of Maryland's congressional delegation as of May 2024.

Congressional Partisan Breakdown from Maryland
Party	U.S. Senate	U.S. House	Total
Democratic	2	7	9
Republican	0	1	1
Independent	0	0	0
Vacancies	0	0	0
Total	2	8	10

State executive

The table below displays the officeholders in Maryland's top four state executive offices as of May 2024.

State executive officials in Maryland, May 2024
Office	Officeholder
Governor	Wes Moore
Lieutenant Governor	Aruna Miller
Secretary of State	Susan Lee
Attorney General	Anthony G. Brown

State legislature

Maryland State Senate

Party		As of February 2024
	Democratic Party	34
	Republican Party	13
	Other	0
	Vacancies	0
Total		47

Maryland House of Delegates

Party		As of February 2024
	Democratic Party	102
	Republican Party	39
	Other	0
	Vacancies	0
Total		141

Trifecta control

The table below shows the state's trifecta status from 1992 until the 2024 election.

Maryland Party Control: 1992-2024
Twenty-one years of Democratic trifectas • No Republican trifectas
Scroll left and right on the table below to view more years.

Year	92	93	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
Governor	D	D	D	D	D	D	D	D	D	D	D	R	R	R	R	D	D	D	D	D	D	D	D	R	R	R	R	R	R	R	R	D	D
Senate	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D
House	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D	D

District history

The section below details election results for this office in elections dating back to 2018.