Former member of Congress · last served 109th Congress

Mark Dayton
Mark Dayton was a Democratic U.S. senator from Minnesota, first elected to Congress in 2001.
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.
5 most recent bills
- S. 4020 Renewable Fuels Promotion ActSep 29, 2006 · Read twice and referred to the Committee on Energy and Natural Resources.
- S. 2812 Renewable Fuels Promotion ActJun 29, 2006 · Sponsor introductory remarks on measure. (CR S6776)
- S. 3239 Uniform Insurance Non-Coverage Disclosure ActMay 25, 2006 · Read twice and referred to the Committee on Commerce, Science, and Transportation.
- S. 2921 Railroad Competition Act of 2006May 22, 2006 · Read twice and referred to the Committee on Commerce, Science, and Transportation.
- S. 2263 Freedom From Foreign Oil Act of 2006Feb 9, 2006 · Read twice and referred to the Committee on Commerce, Science, and Transportation.
Top bills sponsored
- S.Res. 354 (107th) A resolution relative to the death of Paul Wellstone, a Senator from the State of Minnesota.Passed a chamber
- S.Res. 114 (108th) A resolution honoring the life of NBC Reporter David Bloom, and expressing the deepest condolences of the Senate to his family on his death.Passed a chamber
- S.Res. 104 (108th) A resolution commending the University of Minnesota Duluth Bulldogs for winning the 2002-2003 National Collegiate Athletic Association Division I National…Passed a chamber
- S.Res. 235 (108th) A resolution honoring the life of the late Herb Brooks and expressing the deepest condolences of the Senate to his family on his death.Passed a chamber
- S.Res. 297 (108th) A resolution congratulating the Saint John's University, Collegeville, Minnesota, football team for winning the 2003 National Collegiate Athletic Association…Passed a chamber
- S.Res. 346 (108th) A resolution commending the University of Minnesota Golden Gophers for winning the 2003-2004 National Collegiate Athletic Association Division I National…Passed a chamber
- S.Res. 89 (108th) A resolution honoring the life of former Governor of Minnesota Orville L. Freeman, and expressing the deepest condolences of the Senate to his family on his…Passed a chamber
- S.Res. 236 (107th) A resolution commending the University of Minnesota-Duluth Bulldogs for winning the 2002 National Collegiate Athletic Association Division I Women's Ice…Passed a chamber
Laws first, then bills that passed a chamber, were reported from committee, or drew the most cosponsors.
Elections Sen. Dayton has won
Sen. Dayton has won 1 U.S. Senate election (2000). Of the contested races, margins ran from 5.5 to 5.5 points.
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 Minnesota done while Sen. Dayton served?
2005 to 2006 in Minnesota: typical household income was about the same after inflation, the share of people below the poverty line was up 0.6 points, and the share of workers looking for a job was down 0.3 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 Minnesota during Dayton’s time representing it (2001 to 2007). 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 Minnesota begin in 2005, so 2001 to 2004 are not shown. No 2020 yearly estimate exists.
Official records on bills this member sponsored
109th Congress. What Congress.gov lists for the 16 bills sponsored.
| Record | Bills | Source |
|---|---|---|
| Bills sponsored | 16 | Source: Congress.gov member record, PORKER copy of October 26, 2026 ↗ See them → |
| With a CBO cost estimate listed | 0 | None listed |
| With a committee report listed | 0 | None listed |
Evidence
- How counted
- Bills where this member is the lead (first-listed) sponsor in the 109th 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.
Data as of Oct 26, 2026 · Sources: Congress.gov, Senate.gov, House Clerk, Appropriations Committee earmark tables. PORKER is non-partisan.