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D Democratic · Incumbent · U.S. House 5, Massachusetts · Nov 3, 2026

Katherine
M. Clark

Katherine M. Clark is the Democratic U.S. Representative for MA-5 and House Minority Whip, first elected in 2013.

Researched checked 6 d ago
sources
19
positions
11
endorsements
5
katherineclark.org ↗(opens in a new tab) X(opens in a new tab)Facebook(opens in a new tab)Instagram(opens in a new tab)

Background

Katherine M. Clark is the U.S. Representative for Massachusetts' 5th Congressional District and currently serves as House Democratic Whip. She was first elected to Congress in a special election in 2013 and has been re-elected to subsequent terms. 13

Before her congressional service, Clark held several state and local offices, including the Melrose School Committee (2001–2007), the Massachusetts House of Representatives (2008–2010), and the Massachusetts Senate (2010–2013). 3

Prior to her elected career, Clark worked as a lawyer in private practice and for the Colorado District Attorneys' Council, clerked for a federal court, worked as a prosecutor in Colorado, served as general counsel for the Massachusetts Office of Child Care Services, and led the policy division at the Massachusetts Attorney General's office. 13

Clark earned a B.A. from St. Lawrence University (1985), a J.D. from Cornell University (1989), and an M.P.A. from Harvard University's John F. Kennedy School of Government (1997). Her House biography lists her residence as Revere, Massachusetts. 13

At a glance

Party
Democratic · Incumbent
Running for
U.S. House · District 5, Massachusetts
Election
Nov 3, 2026
Current office
U.S. Representative for Massachusetts' 5th Congressional District and House Democratic Whip
Website
katherineclark.org(opens in a new tab)

Where they stand

Each position links to the page it was drawn from. Quotes are verbatim.

Voting record

How Katherine M. Clark voted in Congress: 118th Congress (2023–24) and 119th Congress (2025–26), Jan 3, 2023 to Sep 16, 2026. From the official House and Senate roll call records.

roll call votes
1,909
missed
0.0%
with their party’s majority
99%

Recent key votes

  • Sep 16, 2026 · House · S2403 · Economy & jobs
    Retire through Ownership Act
    On Motion to Suspend the Rules and Pass · Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Sep 16, 2026 · House · HR9497 · Climate & energy
    Water Resources Development Act
    On Motion to Suspend the Rules and Pass, as Amended · Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Sep 16, 2026 · House · HR9340 · Climate & energy
    Ratepayer Protection Act
    On Motion to Suspend the Rules and Pass, as Amended · Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Sep 16, 2026 · House · HJRES213 · Climate & energy
    Providing 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”
    On Passage · Passed
    Official roll call ↗(opens in a new tab)
    No
  • Sep 16, 2026 · House · HR10326 · Crime & public safety
    PROOF Act
    On Passage · Passed
    Official roll call ↗(opens in a new tab)
    No
  • Sep 16, 2026 · House · HR9576 · Crime & public safety
    National Fraud Enforcement Division Act
    On Passage · Passed
    Official roll call ↗(opens in a new tab)
    Yes
  • Sep 15, 2026 · House · HJRES210 · Climate & energy
    Providing 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”
    On Passage · Passed
    Official roll call ↗(opens in a new tab)
    No
  • Sep 15, 2026 · House · HR9500 · Taxes & budget
    Tax Relief for Fraud Victims Act
    On Motion to Suspend the Rules and Pass, as Amended · Passed
    Official roll call ↗(opens in a new tab)
    Yes

Key votes are final decisions on bills and joint resolutions, and top nominations. Software sorts each into an issue from its official title, so check the roll call. All 1,909 votes →

Timeline

  1. Date unknown
    filing
    Clark listed as sole candidate in MA-5 for November 3 general election

    Clark is listed as the only candidate on the November 3 general election ballot for Massachusetts 5th District; independent Derek Fleming reportedly failed to qualify, leaving Clark effectively unopposed.

    Katherine Clark — 2026 Massachusetts's 5th Congressional ... · Sep 26, 2026 (opens in a new tab)
  2. Oct 5
    news
    Clark joins MA lawmakers urging USPS to halt post-office closures in Massachusetts

    Clark, along with Senators Markey and Warren and Representatives Pressley and Lynch, sent a letter demanding USPS reverse proposed closures of post offices in Watertown and Boston neighborhoods.

    Whip Clark, Sens. Markey, Warren, Reps. Pressley, Lynch ... · Oct 5, 2026 (opens in a new tab)
  3. Oct 1
    news
    Whip Clark appears on CNN to discuss AI regulation and costs for working people

    Clark appeared on CNN discussing Democrats' efforts on AI regulation and economic issues, framing the party as focused on working people.

    Whip Clark on CNN: Democrats Are Putting the American ... · Oct 1, 2026 (opens in a new tab)
  4. Sep 19
    endorsement
    Massachusetts AFL-CIO endorses Clark along with other MA federal incumbents

    The Boston Herald reported that the Massachusetts AFL-CIO endorsed Clark alongside the other Massachusetts members of Congress seeking reelection.

    Massachusetts labor union endorses nearly all incumbents as businesses, workers flee · Sep 19, 2026 (opens in a new tab)
  5. Sep 1
    news
    Clark wins Democratic primary with ~74% of the vote over Paz and Samman

    Katherine Clark defeated challengers Jonathan Paz and Tarik Samman in the Massachusetts 5th District Democratic primary, receiving roughly 74% of the vote.

    Katherine Clark — 2026 Massachusetts's 5th Congressional ... · Sep 26, 2026 (opens in a new tab)

Endorsements

  • Massachusetts AFL-CIO union
    Endorsed Clark as part of its 2026 general-election slate; endorsement reported in Boston Herald on September 19, 2026, but specific announcement date not stated. bostonherald.com
  • GIFFORDS organization
    GIFFORDS candidate page identifies Clark as endorsed for U.S. House in 2026; no announcement date stated. giffords.org
  • Planned Parenthood Action Fund organization
    Lists Clark among its endorsed candidates for U.S. Congress in 2026; no announcement date stated on the endorsement page. plannedparenthoodaction.org
  • American Federation of Government Employees (AFGE) union
    Largest federal employee union endorsed Clark along with other Massachusetts House incumbents for reelection to Congress. afge.org · Jul 20, 2026
  • League of Conservation Voters Action Fund organization
    Endorsed Clark for MA-05 in the 2026 general election as part of its first round of House champion endorsements. lcv.org · Apr 25, 2025

Past elections

General election results for federal office, from the Federal Election Commission.

YearSeatResultVotesShare
2022U.S. House MA-05 · DWon203,99474.0%
2020U.S. House MA-05 · DWon294,42774.3%
2018U.S. House MA-05 · DWon236,24375.9%
2016U.S. House MA-05 · DWon285,60698.6%

Covers the 2016 to 2022 general elections. The FEC has not yet published 2024 congressional results.

Campaign finance

Totals filed with the Federal Election Commission for the 2026 election cycle.

Raised
$4.50M
Spent
$3.78M
Cash on hand
$2.05M

As of Aug 12, 2026. Filings are periodic, so recent money may not be included yet. ↳ FEC record H4MA05084(opens in a new tab)

Sources 19

  1. [1] 2026 Planned Parenthood Action Fund Endorsed Candidates(opens in a new tab) Oct 9, 2026
  2. [2] Climate Change | Congresswoman Katherine Clark(opens in a new tab) Oct 8, 2026
  3. [3] Economic Justice(opens in a new tab) Oct 7, 2026
  4. [4] Health Care - Congresswoman Katherine Clark(opens in a new tab) Oct 5, 2026
  5. [5] Immigration(opens in a new tab) Oct 5, 2026
  6. [6] Reproductive Freedom(opens in a new tab) Oct 5, 2026
  7. [7] Whip Clark, Sens. Markey, Warren, Reps. Pressley, Lynch ...(opens in a new tab) Oct 5, 2026
  8. [8] Whip Clark on CNN: Democrats Are Putting the American ...(opens in a new tab) Oct 1, 2026
  9. [9] Katherine Clark — 2026 Massachusetts's 5th Congressional ...(opens in a new tab) Sep 26, 2026
  10. [10] Massachusetts labor union endorses nearly all incumbents as businesses, workers flee(opens in a new tab) Sep 19, 2026
  11. [11] Largest Federal Employee Union Endorses 8 Massachusetts ... - AFGE(opens in a new tab) Jul 20, 2026
  12. [12] Whip Clark Slams GOP’s “Moral Rot” After Housing Betrayal(opens in a new tab) Jun 24, 2026
  13. [13] Katherine Clark - Giffords Law Center(opens in a new tab) Mar 31, 2026
  14. [14] On Earth Week, We're Endorsing Climate Champions to Take Back the House(opens in a new tab) Apr 25, 2025
  15. [15] Whip Clark Underscores House Democrats' Record Of Putting ...(opens in a new tab) Sep 3, 2023
  16. [16] Katherine Clark for Congress | Priorities(opens in a new tab) Mar 9, 2022
  17. [17] Clark Votes in Support of H.R. 1: The For the People Act(opens in a new tab) Mar 3, 2021
  18. [18] MassLive: House passes police reform bill; Massachusetts ...(opens in a new tab) Jun 25, 2020
  19. [19] Clark Issues Report on Ryan Budget Effects to Massachusetts ...(opens in a new tab) Apr 11, 2014
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