MD-04 elected a Democrat in 2018.

D+58.2 on 268,583 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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MD-04 — 2018 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

209,642

78.1%

Republican (R)

53,327

19.9%

All others

5,614

2.1%

Margin

D+58.2

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Margin history

MD-04 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+77.2%	270,970
2022	D	+80.4%	160,009
2020	D	+59.4%	354,529
2018	D	+58.2%	268,583
2016	D	+52.7%	320,650
2014	D	+41.9%	191,837
2012	D	+56.4%	311,512
2010	D	+67.1%	192,020
2008	D	+73.0%	301,431
2006	D	+62.0%	175,903
2004	D	+55.0%	261,607
2002	D	+58.0%	166,729
2000	D	+74.6%	197,969
1998	D	+71.4%	150,657
1996	D	+70.4%	166,794
1994	D	+50.1%	124,147
1992	D	+50.4%	182,068
1990	D	+17.7%	145,447
1988	D	+36.6%	188,312
1986	D	+0.3%	129,714
1984	R	−32.5%	172,743
1982	R	−22.4%	123,564
1980	R	−43.7%	168,360
1978	R	−24.1%	115,037
1976	R	−15.3%	165,013