Katherine M. Clark

Representative from Massachusetts

HOUSEDEMOCRAT2013–nowID C001101

LegislationHEADLINE

99%with Dems

of 4,738 votes

Nominations

—with Dems

of 0 · confirmations only

All contested

99%with Dems

of 4,738 · both combined

Steepest move

+1 pts

2017 → 2019

still a Democrat

Career arc

Legislation leads. Each point is one Congress: how often they sided with the Democratic majority on contested bills, resolutions and amendments.

100%75%50%25%0%sides with Democrats ↑sides with Republicans ↓201320192025

2025–26119th Congress

Sat as a Democrat

99.1%with Democrats

of 470 contested votes

Votes for this Congress are open below

Steepest move: 2017 → 2019, +1 pts — while still a Democrat.

Sat as a DemocratSat as a RepublicanVotes available below

Votes

DateBillVoteTypeCastSided with

Sep 16, 2026S. 2403Retire through Ownership ActLEGISLATIONYEABOTH · NOT SCORED

Sep 16, 2026H.R. 9497Water Resources Development ActLEGISLATIONYEABOTH · NOT SCORED

Sep 16, 2026H.R. 9340Ratepayer Protection ActLEGISLATIONYEABOTH · NOT SCORED

Full textRatepayer Protection ActParty majoritiesDemocrats Yea · Republicans YeaCounts toward scoreNo — both party majorities voted Yea.

Where this lands

YEAVoted with both majorities — not scored

Open roll call

Sep 16, 2026H.J.Res. 213Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the “California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision”LEGISLATIONNAYDEM MAJORITY

Sep 16, 2026H.R. 10326PROOF ActLEGISLATIONNAYDEM MAJORITY

Sep 16, 2026H.R. 9576National Fraud Enforcement Division ActLEGISLATIONYEABOTH · NOT SCORED

Sep 16, 2026H.R. 5334An Act to amend the Internal Revenue Code of 1986 to allow early childhood educators to take the educator expense deduction, and for other purposesLEGISLATIONNAYDEM MAJORITY

Sep 15, 2026H.Con.Res. 93Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with IranLEGISLATIONYEADEM MAJORITY

Sep 15, 2026H.J.Res. 210Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to “California State Nonroad Engine Pollution Control Standards; Ocean-Going Vessels At-Berth; Notice of Decision”LEGISLATIONNAYDEM MAJORITY

9 most recent roll calls shown · 470 contested votes scored in the 119th CongressAll votes this Congress →

By policy area

career · legislation

Congress100% · 1,234 votes

Economics and Public Finance99.1% · 922 votes

Armed Forces and National Security98.8% · 415 votes

Government Operations and Politics99.3% · 292 votes

Energy100% · 206 votes

Finance and Financial Sector97.9% · 193 votes

Environmental Protection99.3% · 149 votes

Public Lands and Natural Resources100% · 125 votes

Crime and Law Enforcement98.4% · 124 votes

Health100% · 111 votes

International Affairs100% · 107 votes

Labor and Employment100% · 90 votes

Taxation95.3% · 86 votes

Immigration100% · 84 votes

Transportation and Public Works100% · 84 votes

Education100% · 69 votes

Law100% · 60 votes

Emergency Management100% · 45 votes

Science, Technology, Communications97.5% · 40 votes

Water Resources Development100% · 34 votes

Agriculture and Food100% · 27 votes

Civil Rights and Liberties, Minority Issues100% · 26 votes

Commerce100% · 24 votes

Foreign Trade and International Finance100% · 16 votes

Native Americans100% · 14 votes

Animals100% · 12 votes

Housing and Community Development100% · 12 votes

Families100% · 11 votes

Social Welfare100% · 11 votes

Too few contested votes to score

Arts, Culture, Religion— · 2 votes

They also voted in 1 area where the parties never split, so there is nothing to score — never on a contested question: Sports and Recreation.

Blue is the share of votes siding with the Democratic majority; the tick marks 50%.

Service record

7 Congresses

113th · 2013119th · 2025

Democrat · House · MA113th–119th

Term datesexact

Katherine M. Clark

Representative from Massachusetts

HOUSED2013–now7 CONGRESSES

Compare

LegislationHEADLINE

99.3%with Democrats

of 4,738 votes · 0.7% with Republicans

Nominations—of 0 votes

All contested99%of 4,738 · combined

Steepest move+1 pts2017→19, as a Democrat

Career arc

10050020132025

2025–26 · 119th · Democrat · of 470 votes99.1%

Legislation leads. Tap a point to read that Congress.

Votes

Democratic majorityYea

Republican majorityYea

Counts toward scoreNo

Open roll call

Latest 6 shown · 470 contested votes scored in the 119th

By policy area

career

Congress100% · 1,234

Economics and Public Finance99.1% · 922

Armed Forces and National Security98.8% · 415

Government Operations and Politics99.3% · 292

Energy100% · 206

Finance and Financial Sector97.9% · 193

Environmental Protection99.3% · 149

Public Lands and Natural Resources100% · 125

Crime and Law Enforcement98.4% · 124

Health100% · 111

International Affairs100% · 107

Labor and Employment100% · 90

Taxation95.3% · 86

Immigration100% · 84

Transportation and Public Works100% · 84

Education100% · 69

Law100% · 60

Emergency Management100% · 45

Science, Technology, Communications97.5% · 40

Water Resources Development100% · 34

Agriculture and Food100% · 27

Civil Rights and Liberties, Minority Issues100% · 26

Commerce100% · 24

Foreign Trade and International Finance100% · 16

Native Americans100% · 14

Animals100% · 12

Housing and Community Development100% · 12

Families100% · 11

Social Welfare100% · 11

Arts, Culture, Religion— · 2

Also voted in 1 area where the parties never split — never on a contested question: Sports and Recreation.

Service record

113th · 2013119th · 2025

Democrat113th–119th

Party switchers

John Alexander LoganD→R · IL · 40th Wesley Wade WatkinsD→R · OK · 105th Ben Nighthorse CampbellD→R · CO · 104th