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Former member of Congress · last served 112th Congress

Official portrait of Rep. Donald A. Manzullo

Donald A. Manzullo

REPUBLICAN U.S. Representative · IllinoisHouse 1993–2013 (IL-16)

Donald Manzullo was a Republican U.S. representative from Illinois, first elected to Congress in 1993, who voted with most Republicans on 94% of the 112th Congress’s yes/no votes and sponsored 7 bills that became law (103rd–112th Congress).

116Bills & resolutions sponsored103rd–112th Congress (excludes amendments)
18Passed a chamberof 116 bills & resolutions sponsored
7Became law7 substantive + 0 ceremonial · 103rd–112th Congress
36Broke with partyof 609 yes/no votes, 112th (5.9%)
48Missed votesof 658 roll calls, 112th (7.3%)
—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.

5 most recent votes

5 most recent bills

Top bills sponsored

Laws first, then bills that passed a chamber, were reported from committee, or drew the most cosponsors.

Elections Rep. Manzullo has won

Rep. Manzullo has won 10 U.S. House elections (1992–2010). Of the contested races, margins ran from 11.3 to 41.3 points.

010204060Margin of victory, points (axis starts at 0)1992, IL-16: won by 11.3 points1992IL-161994, IL-16: won by 41.3 points19941996, IL-16: won by 20.6 points19961998: unopposed19982000, IL-16: won by 33.5 points20002002, IL-16: won by 41.2 points20022004, IL-16: won by 38.2 points20042006, IL-16: won by 31.4 points20062008, IL-16: won by 24.8 points20082010, IL-16: won by 34.0 points2010
Democratic winRepublican winseat changed partyunopposed
Elections won10 in the data (1976–2024); losses are not listed
Closest win: 11.3 points1992, IL-16
Won an open seat or took one from the other party1 of 10 elections (open seat or changed party)
Seat history, Illinois’s 16th districtWinners, most recent three: Donald A. Manzullo (R) 1992–2010 → Adam Kinzinger (R) 2012–2020 → Darin Lahood (R) 2022–2024. Elections shown, not terms; special elections not included.

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.

How has Illinois’s 16th district done while Rep. Manzullo served?

2005 to 2011 in IL-16: typical household income was down 12% after inflation, the share of people below the poverty line was up 5.0 points, and the share of workers looking for a job was up 4.6 points.

Typical household income · after inflationIllinois $74.6KIL-16 $74.5KU.S. $70.8K
IL-16: $84.8K in 2005 → $74.5K in 2011
IL-16 down 12%Illinois down 8%U.S. down 5%
Share of people below the poverty lineU.S. 15.9%Illinois 15.0%IL-16 13.7%
IL-16: 8.7% in 2005 → 13.7% in 2011
IL-16 up 5.0 pointsIllinois up 3.0 pointsU.S. up 2.6 points
Share of workers looking for a jobIL-16 11.9%Illinois 11.0%U.S. 10.3%
IL-16: 7.3% in 2005 → 11.9% in 2011
IL-16 up 4.6 pointsIllinois up 3.2 pointsU.S. up 3.4 points

Each mini chart has its own scale, fitted to its lines (it does not start at zero), so compare the numbers, not the heights. Teal = district, oxblood = state, grey = U.S.

While they served, not because of them. This shows what happened in Illinois’s 16th district during Manzullo’s time representing it (1993 to 2013). It does not say what the member did or caused. It is not a score, and PORKER never ranks members on it.

Only one set of district lines is shown. IL-16 was redrawn in 2012 and again in 2022, and a redrawn district is a different place. So this card shows only the longest stretch on the same lines during the term, 2005 to 2011 (no 2020 yearly estimate), not the full 1993 to 2013.

See the full 20-year record →Source: U.S. Census Bureau, American Community Survey 1-year estimates (tables B19013, B17001, B23001) and BLS CPI-U-RS for inflation, retrieved October 18, 2026. “About the same” means the change is inside the 90% margins of error. Who held the seat: Congress.gov member service records, year level.

Official records on bills this member sponsored

112th Congress. What Congress.gov lists for the 12 bills sponsored.

RecordBillsSource
Bills sponsored12Source: Congress.gov member record, PORKER copy of October 26, 2026 ↗ See them →
With a sponsor’s constitutional-authority statement9See the 9 →
With a CBO cost estimate listed0None listed
With a committee report listed0None listed
Evidence
How counted
Bills where this member is the lead (first-listed) sponsor in the 112th Congress, read from the stored Congress.gov bill records
Fields
cboCostEstimates, committeeReports, constitutionalAuthorityStatementText, notes
PORKER copy refreshed
October 26, 2026 (nightly)

Read this first. These are counts of records Congress.gov lists. Many bills never get a CBO estimate or a report, so a zero is not a mark against a member. We never show this as a score.

Open full dossier →

Data as of Oct 26, 2026 · latest recorded House vote Sep 16, 2026 · Sources: Congress.gov, Senate.gov, House Clerk, Appropriations Committee earmark tables. PORKER is non-partisan.