Jeff Duncan

Former Representative for South Carolina’s 3rd District, 2011–2025 · Republican

Record from the 118th Congress · From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 10, 2026 · How we measure

Effectiveness, 118th Congress

How it’s measured

1.61· expected 1.38

Meets expectations

Rank 87 of 445 who served in the House that Congress · expected = average of 227 majority-party members

How far Duncan’s own bills got, weighted by substance. The average member scores 1.00.

27 bills and joint resolutions sponsored: 3 significant (got a roll call vote), 23 substantive, 1 commemorative. Compare the House

How Duncan’s ratings compare with every representative

Ratings, 118th Congress

Scores run 0–100 and always sit next to a median. Each tick is one representative; the ringed marker is Duncan. Medians and ranks are among everyone who served in the 118th Congress’s House.

Duncan in plain answers: party votes, bipartisanship, who votes alike

Attendance

How it’s measured

98/ 100

Chamber median 98 · 29 missed of 1,235

Voted on 1,206 of 1,235 roll calls; missed 29. Higher than 51% of House members.

35%100%

Party loyalty

How it’s measured

99/ 100

House R median 95 · Rank 34 of 227

Sided with the Republican majority on 853 votes that split the parties. Higher than 76% of House members.

50%100%

Bipartisan

How it’s measured

7/ 100

Chamber median 16 · −9

Average agreement with members of the other party on contested votes. Lower than 94% of House members.

0%60%

Position

How it’s measured

+0.69

Republican middle 80%: 0.31 to 0.71

Left–right position from roll-call similarity (DW-NOMINATE, Voteview), from −1 to +1. Members who vote alike sit near each other.

LiberalConservative

Duncan’s bills that made it out of committee or further

All bills

6 bills and joint resolutions sponsored in the 118th Congress, furthest along first. These are the bills counted in Duncan’s effectiveness score.

H.R. 3293 Expediting Federal Broadband Deployment Reviews ActScience, Technology, Communications · Passed a chamber Dec 17, 2024Substantive660 words Passed a chamber
H.R. 1121 Protecting American Energy Production ActEnergy · Passed a chamber Mar 21, 2024Substantive91 words Passed a chamber
H.R. 6544 Atomic Energy Advancement ActEnergy · Passed a chamber Feb 29, 2024Substantive12k words Passed a chamber
H.R. 7655 Pipeline Safety, Modernization, and Expansion Act of 2024Transportation and Public Works · Out of committee Mar 20, 2024Substantive8.9k words Out of committee
H.R. 6185 GRID ActEnergy · Out of committee Mar 19, 2024Substantive523 words Out of committee
H.R. 742 TELL ActCommerce · Out of committee Mar 9, 2023Substantive280 words Out of committee

Stage comes from each bill’s latest action on congress.gov; the full history is on each bill page.