ID-01 elected a Republican in 2018.

R+32.0 on 315,069 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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ID-01 — 2018 result

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

Democratic (D)

96,922

30.8%

Republican (R)

197,719

62.8%

All others

20,428

6.5%

Margin

R+32.0

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Margin history

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

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Year	Won	Margin	Votes
2024	R	−45.6%	466,242
2022	R	−45.0%	312,442
2020	R	−39.1%	458,576
2018	R	−32.0%	315,069
2016	R	−36.4%	355,357
2014	R	−30.0%	220,864
2012	R	−32.2%	316,724
2010	R	−9.7%	247,427
2008	D	+1.2%	347,585
2006	R	−5.1%	231,974
2004	R	−39.1%	298,589
2002	R	−19.6%	206,141
2000	R	−33.4%	268,116
1998	R	−10.5%	204,884
1996	R	−2.4%	264,778
1994	R	−10.9%	201,554
1992	D	+20.6%	242,890
1990	D	+6.0%	160,460
1988	R	−31.6%	205,549
1986	R	−32.9%	185,124
1984	R	−37.2%	202,676
1982	R	−7.4%	160,665
1980	R	−7.4%	217,542
1978	R	−19.8%	144,652
1976	R	−9.2%	175,495