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Former member of Congress · last served 116th Congress

Official portrait of Sen. Pat Roberts

Pat Roberts

REPUBLICAN U.S. Senator · KansasSenate 1997–2021 · House 1981–1997 (KS-1)

Pat Roberts was a Republican U.S. senator from Kansas, first elected to Congress in 1981, who voted with most Republicans on 89% of the 112th Congress’s yes/no votes and sponsored 6 bills that became law (113th–116th Congress).

105Bills & resolutions sponsored113th–116th Congress (excludes amendments)
6Passed a chamberof 87 substantive bills (excludes resolutions and ceremonial bills)
6Became law4 substantive + 2 ceremonial · 113th–116th Congress
28Broke with partyof 245 yes/no votes, 112th (11.4%)
6Missed votesof 251 roll calls, 112th (2.4%)
—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 Sen. Roberts has won

Sen. Roberts has won 8 U.S. House elections (1980–1994) and 4 U.S. Senate elections (1996, 2002, 2008, 2014). Of the contested races, margins ran from 10.6 to 73.4 points.

010204060Margin of victory, points (axis starts at 0)1980, KS-1: won by 24.6 points1980KS-11982, KS-1: won by 38.2 points19821984, KS-1: won by 52.6 points19841986, KS-1: won by 53.0 points19861988: unopposed19881990, KS-1: won by 25.3 points19901992, KS-1: won by 39.0 points19921994, KS-1: won by 54.8 points19941996, KS Senate: won by 27.6 points1996KS Senate2002, KS Senate: won by 73.4 points20022008, KS Senate: won by 23.6 points20082014, KS Senate: won by 10.6 points2014
Democratic winRepublican winseat changed partyunopposed
Elections won12 in the data (1976–2024); losses are not listed
Closest win: 10.6 points2014, KS Senate
Won an open seat or took one from the other party2 of 12 elections (open seat or changed party)
Seat history, Kansas’s 1st districtWinners, most recent three: Tim Huelskamp (R) 2010–2014 → Roger Marshall (R) 2016–2018 → Tracey Mann (R) 2020–2024. Elections shown, not terms; special elections not included.
Seat history, Kansas Senate (class 2)Winners in regular elections, most recent three: Nancy Kassebaum (R) 1978–1990 → Pat Roberts (R) 1996–2014 → Roger Marshall (R) 2020. The seat is next on the ballot in 2026.

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 Kansas done while Sen. Roberts served?

2005 to 2019 in Kansas: typical household income was up 10% after inflation, the share of people below the poverty line was about the same, and the share of workers looking for a job was down 1.8 points.

Typical household income · after inflationU.S. $80.9KKansas $76.4K
Kansas: $69.3K in 2005 → $76.4K in 2019
Kansas up 10%U.S. up 8%
Share of people below the poverty lineU.S. 12.3%Kansas 11.4%
Kansas: 11.7% in 2005 → 11.4% in 2019
Kansas about the sameU.S. down 1.0 points
Share of workers looking for a jobU.S. 4.5%Kansas 3.8%
Kansas: 5.5% in 2005 → 3.8% in 2019
Kansas down 1.8 pointsU.S. down 2.4 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. Oxblood = state, grey = U.S.

While they served, not because of them. This shows what happened in Kansas during Roberts’s time representing it (1997 to 2021). It does not say what the member did or caused. It is not a score, and PORKER never ranks members on it.

Survey years start at 2005. The yearly estimates for Kansas begin in 2005, so 1997 to 2004 are not shown. No 2020 yearly estimate exists.

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

116th Congress. What Congress.gov lists for the 22 bills sponsored.

RecordBillsSource
Bills sponsored22Source: Congress.gov member record, PORKER copy of October 26, 2026 ↗ See them →
With a CBO cost estimate listed2See the 2 →
With a committee report listed1See the 1 →
Evidence
How counted
Bills where this member is the lead (first-listed) sponsor in the 116th 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 Senate vote Sep 30, 2026 · Sources: Congress.gov, Senate.gov, House Clerk, Appropriations Committee earmark tables. PORKER is non-partisan.