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Former member of Congress · last served 98th Congress

Official portrait of Sen. Henry M. Jackson

Henry M. Jackson

DEMOCRAT U.S. Senator · WashingtonSenate 1953–1985 · House 1941–1953 (WA-2)

Henry Jackson was a Democratic U.S. senator from Washington, first elected to Congress in 1941.

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—Bills sponsoredData not available: bill records start with the 100th Congress (1987)
—Passed a chamberData not available: bill records start with the 100th Congress (1987)
—Became lawData not available: bill records start with the 100th Congress (1987)
—Broke with partyNo roll calls in PORKER’s records (they start in 2011)
—Missed votesNo roll calls in PORKER’s records (they start in 2011)
—Pork: own shareFY2024 earmarks: not in office

How we count: “Broke with party” is a yes/no roll call where the member voted against most of their own party on that vote (party as recorded; even splits not counted). “Pork: own share” splits each earmark shared by several members evenly among them.

Recent votes

No recorded roll-call votes in PORKER’s records. Roll-call records start in 2011.

Recent bills

Data not available: PORKER’s bill records start with the 100th Congress (1987), and this member served before then.

Elections Sen. Jackson has won

Sen. Jackson has won 2 U.S. Senate elections (1976, 1982). Of the contested races, margins ran from 44.7 to 47.6 points.

010204060Margin of victory, points (axis starts at 0)1976, WA Senate: won by 47.6 points1976WA Senate1982, WA Senate: won by 44.7 points1982
Democratic winRepublican winseat changed partyunopposed
Elections won2 in the data (1976–2024); losses are not listed
Closest win: 44.7 points1982, WA Senate
Won an open seat or took one from the other party0 of 2 elections (open seat or changed party)
Seat history, Washington Senate (class 1)Winners in regular elections, most recent three: Henry Jackson (D) 1976–1982 → T. Gorton (R) 1988–1994 → Maria Cantwell (D) 2000–2024.

Full election history for this seat →

Source: MIT Election Data and Science Lab, U.S. House V15 / U.S. Senate V8 (CC0), retrieved 2026-10-18; winners matched to member records by seat and term. Results run through the 2024 elections; nothing from 2026 is shown until it is certified. A margin is a fact about one election, never a score of how well a member represents anyone, and PORKER does not rank members by it.

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Data as of Oct 26, 2026 · Sources: Congress.gov, Senate.gov, House Clerk, Appropriations Committee earmark tables. PORKER is non-partisan.