MO-01 elected a Democrat in 2018.

D+63.4 on 274,375 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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MO-01 — 2018 result

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

Democratic (D)

219,781

80.1%

Republican (R)

45,867

16.7%

All others

8,727

3.2%

Margin

D+63.4

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Margin history

MO-01 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+57.6%	307,265
2022	D	+48.5%	220,958
2020	D	+59.8%	316,171
2018	D	+63.4%	274,375
2016	D	+55.5%	314,024
2014	D	+51.4%	163,494
2012	D	+60.8%	340,583
2010	D	+49.9%	184,779
2008	D	+86.9%	279,277
2006	D	+48.2%	194,235
2004	D	+52.5%	283,771
2002	D	+43.0%	191,055
2000	D	+53.7%	198,347
1998	D	+48.1%	125,051
1996	D	+42.5%	187,653
1994	D	+30.6%	153,018
1992	D	+36.1%	233,175
1990	D	+21.8%	102,710
1988	D	+44.6%	196,658
1986	D	+32.3%	137,643
1984	D	+36.5%	215,974
1982	D	+32.2%	155,255
1980	D	+40.5%	129,939
1978	D	+35.3%	99,010
1976	D	+31.1%	133,184