OR-03 elected a Democrat in 2018.

D+52.8 on 384,326 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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OR-03 — 2018 result

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

Democratic (D)

279,019

72.6%

Republican (R)

76,187

19.8%

All others

29,120

7.6%

Margin

D+52.8

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Margin history

OR-03 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+42.5%	334,369
2022	D	+43.6%	303,334
2020	D	+49.5%	470,506
2018	D	+52.8%	384,326
2016	D	+71.8%	382,355
2014	D	+52.7%	292,757
2012	D	+54.7%	355,875
2010	D	+45.5%	275,802
2008	D	+53.7%	341,062
2006	D	+50.0%	253,610
2004	D	+47.2%	346,560
2002	D	+40.0%	234,977
2000	D	+43.1%	271,161
1998	D	+83.9%	183,351
1996	D	+40.6%	247,909
1994	D	+53.1%	222,822
1992	D	+58.5%	269,879
1990	D	+61.6%	210,193
1988	D	+99.4%	191,825
1986	D	+71.9%	209,581
1984	D	+44.6%	239,897
1982	D	+56.6%	203,662
1980	D	+43.9%	217,423
1978	D	+84.6%	179,460
1976	D	+83.9%	177,051