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Former member of Congress · last served 117th Congress

Official portrait of Rep. Vicky Hartzler

Vicky Hartzler

REPUBLICAN U.S. Representative · MissouriHouse 2011–2023 (MO-4)

Vicky Hartzler was a Republican U.S. representative from Missouri, first elected to Congress in 2011, who voted with most Republicans on 96% of the 112th Congress’s yes/no votes and sponsored 3 bills that became law (113th–117th Congress).

84Bills & resolutions sponsored113th–117th Congress (excludes amendments)
4Passed a chamberof 76 substantive bills (excludes resolutions and ceremonial bills)
3Became law2 substantive + 1 ceremonial · 113th–117th Congress
29Broke with partyof 648 yes/no votes, 112th (4.5%)
9Missed votesof 658 roll calls, 112th (1.4%)
—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. Hartzler has won

Rep. Hartzler has won 6 U.S. House elections (2010–2020). Of the contested races, margins ran from 5.3 to 41.7 points.

010204060Margin of victory, points (axis starts at 0)2010, MO-4: won by 5.3 points2010MO-42012, MO-4: won by 24.8 points20122014, MO-4: won by 41.7 points20142016, MO-4: won by 40.0 points20162018, MO-4: won by 32.1 points20182020, MO-4: won by 37.9 points2020
Democratic winRepublican winseat changed partyunopposed
Elections won6 in the data (1976–2024); losses are not listed
Closest win: 5.3 points2010, MO-4
Won an open seat or took one from the other party1 of 6 elections (open seat or changed party)
Seat history, Missouri’s 4th districtWinners, most recent three: Ike Skelton (D) 1976–2008 → Vicky Hartzler (R) 2010–2020 → Mark Alford (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 Missouri’s 4th district done while Rep. Hartzler served?

2012 to 2021 in MO-4: typical household income was up 13% after inflation, the share of people below the poverty line was down 2.5 points, and the share of workers looking for a job was down 3.5 points.

Typical household income · after inflationU.S. $80.8KMissouri $71.7KMO-4 $65.4K
MO-4: $57.6K in 2012 → $65.4K in 2021
MO-4 up 13%Missouri up 15%U.S. up 15%
Share of people below the poverty lineMO-4 14.8%U.S. 12.8%Missouri 12.7%
MO-4: 17.3% in 2012 → 14.8% in 2021
MO-4 down 2.5 pointsMissouri down 3.5 pointsU.S. down 3.2 points
Share of workers looking for a jobU.S. 6.3%MO-4 5.0%Missouri 4.6%
MO-4: 8.5% in 2012 → 5.0% in 2021
MO-4 down 3.5 pointsMissouri down 4.0 pointsU.S. down 3.1 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 Missouri’s 4th district during Hartzler’s time representing it (2011 to 2023). 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. MO-4 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, 2012 to 2021 (no 2020 yearly estimate), not the full 2011 to 2023.

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

117th Congress. What Congress.gov lists for the 30 bills sponsored.

RecordBillsSource
Bills sponsored30Source: Congress.gov member record, PORKER copy of October 26, 2026 ↗ See them →
With a sponsor’s constitutional-authority statement26See the 26 →
With a CBO cost estimate listed1See the 1 →
With a committee report listed0None listed
Evidence
How counted
Bills where this member is the lead (first-listed) sponsor in the 117th 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.