CO-03 elected a Republican in 2016.

R+14.3 on 374,037 certified votes. Below: the 2016 result and this district's margin across every cycle on record.

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CO-03 — 2016 result

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

Democratic (D)

150,914

40.3%

Republican (R)

204,220

54.6%

All others

18,903

5.1%

Margin

R+14.3

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Margin history

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

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Year	Won	Margin	Votes
2024	R	−5.0%	397,553
2022	R	−0.2%	327,285
2020	R	−6.2%	429,319
2018	R	−8.0%	336,189
2016	R	−14.3%	374,037
2014	R	−22.3%	281,141
2012	R	−12.3%	347,247
2010	R	−4.3%	257,999
2008	D	+23.2%	330,217
2006	D	+25.0%	237,858
2004	D	+4.0%	303,646
2002	R	−34.5%	217,972
2000	R	−36.8%	302,540
1998	R	−34.7%	236,653
1996	R	−37.7%	266,476
1994	R	−39.2%	208,792
1992	R	−11.0%	261,964
1990	D	+42.0%	177,307
1988	D	+56.1%	216,909
1986	D	+3.7%	183,861
1984	R	−15.2%	214,974
1982	D	+8.7%	172,888
1980	D	+11.2%	192,782
1978	D	+0.3%	141,442
1976	D	+4.0%	175,232