Jeff Duncan, Representative for South Carolina's 3rd Congressional District

Duncan is the representative for South Carolina’s 3^rd congressional district (view map) and is a Republican. He has served since Jan 5, 2011. Duncan’s current term ends on Jan 3, 2023.

Duncan is among the Republican legislators who participated in President Trump’s months-long, multifarious attempted coup during the 2020 presidential election and culminating in the Jan. 6, 2021 insurrection at the Capitol. Shortly after the election, Duncan joined a case before the Supreme Court calling for all the votes for president in Georgia, Michigan, Pennsylvania, and Wisconsin — states that were narrowly won by Democrats — to be discarded, in order to change the outcome of the election, based on lies and a preposterous legal argument which the Supreme Court rejected. (Following the rejection of several related cases before the Supreme Court, another legislator who joined the case called for violence.) On January 6, 2021 in the hours after the insurrection at the Capitol, Duncan voted to reject the state-certified election results of Arizona and/or Pennsylvania (states narrowly won by Democrats), which could have changed the outcome of the election. These legislators have generally changed their story after their vote, claiming it was merely a protest and not intended to change the outcome of the election as they clearly sought prior to the vote. The January 6, 2021 insurrection at the Capitol disrupted Congress’s count of electors that determined the outcome of the presidential election with the goal to prevent President Joe Biden from taking office.

Analysis

Ideology–Leadership Chart

Duncan is shown as a purple triangle ▲ in our ideology-leadership chart below. Each dot is a member of the House of Representatives positioned according to our ideology score (left to right) and our leadership score (leaders are toward the top).

The chart is based on the bills Duncan has sponsored and cosponsored from Jan 3, 2017 to Dec 2, 2022. See full analysis methodology.

Committee Membership

Jeff Duncan sits on the following committees:

House Committee on Energy and Commerce

Communications and Technology, Energy, Environment and Climate Change subcommittees

Enacted Legislation

Duncan was the primary sponsor of 3 bills that were enacted:

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Does 3 not sound like a lot? Very few bills are ever enacted — most legislators sponsor only a handful that are signed into law. But there are other legislative activities that we don’t track that are also important, including offering amendments, committee work and oversight of the other branches, and constituent services.

We consider a bill enacted if one of the following is true: a) it is enacted itself, b) it has a companion bill in the other chamber (as identified by Congress) which was enacted, or c) if at least about half of its provisions were incorporated into bills that were enacted (as determined by an automated text analysis, applicable beginning with bills in the 110^th Congress).

Bills Sponsored

Issue Areas

Duncan sponsors bills primarily in these issue areas:

Government Operations and Politics (21%) Immigration (16%) Energy (14%) Health (14%) International Affairs (12%) Science, Technology, Communications (9%) Taxation (7%) Crime and Law Enforcement (7%)

Recently Introduced Bills

Duncan recently introduced the following legislation:

View All » | View Cosponsors »

Most legislation has no activity after being introduced.

Voting Record

Key Votes

Duncan voted Nay

H.R. 7900: National Defense Authorization Act for Fiscal Year 2023

Passed 329/101 on Jul 14, 2022.

Duncan voted Yea

H.R. 1957: Great American Outdoors Act

Passed 310/107 on Jul 22, 2020.

Duncan voted Nay

H.R. 2048: Uniting and Strengthening America by Fulfilling Rights and Ensuring Effective Discipline Over Monitoring Act of 2015

Passed 338/88 on May 13, 2015.

The USA Freedom Act (H.R. 2048, Pub.L. 114–23) is a U.S. law enacted on June 2, 2015 that restored in modified form several provisions of …

Duncan voted No

H.J.Res. 124 (113th): Continuing Appropriations Resolution, 2015

Passed 319/108 on Sep 17, 2014.

Duncan voted Nay

S. 2154 (113th): Emergency Medical Services for Children Reauthorization Act of 2014

Passed 410/4 on Sep 16, 2014.

Duncan voted Nay

H.R. 316 (113th): Collinsville Renewable Energy Production Act

Passed 379/3 on Jun 23, 2014.

Duncan voted Nay

H.R. 3521 (113th): Department of Veterans Affairs Major Medical Facility Lease Authorization Act of 2013

Passed 346/1 on Dec 10, 2013.

Duncan voted No

H.R. 1249 (112th): Leahy-Smith America Invents Act

Passed 304/117 on Jun 23, 2011.

The Leahy–Smith America Invents Act (AIA) is a United States federal statute that was passed by Congress and was signed into law by President Barack …

Missed Votes

From Jan 2011 to Dec 2022, Duncan missed 206 of 7,231 roll call votes, which is 2.8%. This is on par with the median of 2.0% among the lifetime records of representatives currently serving. The chart below reports missed votes over time.

We don’t track why legislators miss votes, but it’s often due to medical absenses and major life events.

Show the numbers...

Time Period	Votes Eligible	Missed Votes	Percent	Percentile
2011 Jan-Mar	212	3	1.4%	53^rd
2011 Apr-Jun	281	3	1.1%	41^st
2011 Jul-Sep	247	0	0.0%	0^th
2011 Oct-Dec	208	0	0.0%	0^th
2012 Jan-Mar	151	0	0.0%	0^th
2012 Apr-Jun	299	3	1.0%	36^th
2012 Jul-Sep	152	1	0.7%	29^th
2012 Nov-Dec	51	0	0.0%	0^th
2013 Jan-Jan	5	0	0.0%	0^th
2013 Jan-Mar	89	0	0.0%	0^th
2013 Apr-Jun	215	0	0.0%	0^th
2013 Jul-Sep	200	0	0.0%	0^th
2013 Oct-Dec	137	0	0.0%	0^th
2014 Jan-Mar	148	1	0.7%	23^rd
2014 Apr-Jun	219	0	0.0%	0^th
2014 Jul-Sep	147	1	0.7%	28^th
2014 Nov-Dec	49	0	0.0%	0^th
2015 Jan-Mar	144	9	6.2%	82^nd
2015 Apr-Jun	244	12	4.9%	84^th
2015 Jul-Sep	139	1	0.7%	31^st
2015 Oct-Dec	177	2	1.1%	50^th
2016 Jan-Mar	137	10	7.3%	72^nd
2016 Apr-Jun	204	9	4.4%	73^rd
2016 Jul-Sep	232	4	1.7%	59^th
2016 Nov-Dec	48	0	0.0%	0^th
2017 Jan-Mar	208	18	8.7%	94^th
2017 Apr-Jun	136	4	2.9%	69^th
2017 Jul-Sep	199	1	0.5%	36^th
2017 Oct-Dec	167	3	1.8%	50^th
2018 Jan-Mar	129	13	10.1%	89^th
2018 Apr-Jun	184	2	1.1%	28^th
2018 Jul-Sep	102	10	9.8%	92^nd
2018 Nov-Dec	85	40	47.1%	96^th
2019 Jan-Mar	136	1	0.7%	34^th
2019 Apr-Jun	294	1	0.3%	21^st
2019 Jul-Sep	125	1	0.8%	55^th
2019 Oct-Dec	146	1	0.7%	28^th
2020 Jan-Mar	102	2	2.0%	48^th
2020 Apr-Jun	31	7	22.6%	92^nd
2020 Jul-Sep	80	5	6.2%	82^nd
2020 Oct-Dec	40	17	42.5%	98^th
2021 Jan-Mar	97	5	5.2%	89^th
2021 Apr-Jun	107	1	0.9%	41^st
2021 Jul-Sep	108	4	3.7%	85^th
2021 Oct-Dec	137	0	0.0%	0^th
2022 Jan-Mar	102	3	2.9%	82^nd
2022 Apr-Jun	197	0	0.0%	0^th
2022 Jul-Sep	161	8	5.0%	94^th
2022 Nov-Dec	23	0	0.0%	0^th

Primary Sources

The information on this page is originally sourced from a variety of materials, including:

unitedstates/congress-legislators, a community project gathering congressional information
The House and Senate websites, for committee membership and voting records
GPO Member Guide for the photo
GovInfo.gov, for sponsored bills

Rep. Jeff Duncan

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Analysis

Ideology–Leadership Chart

Committee Membership

Enacted Legislation

Bills Sponsored

Issue Areas

Recently Introduced Bills

Voting Record

Key Votes

Duncan voted Nay

Duncan voted Yea

Duncan voted Nay

Duncan voted No

Duncan voted Nay

Duncan voted Nay

Duncan voted Nay

Duncan voted No

Missed Votes

Primary Sources