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Data through Sep 17, 2026Compare members
The Vote Ledger
MS

Michael K. Simpson

Representative from Idaho
HOUSEREPUBLICAN1999–nowID S001148
Compare
LegislationHEADLINE
10%with Dems
of 10,242 votes
Nominations
—with Dems
of 0 · confirmations only
All contested
10%with Dems
of 10,242 · both combined
Steepest move
−15 pts
2023 → 2025
still a Republican

Career arc

Legislation leads. Each point is one Congress: how often they sided with the Democratic majority on contested bills, resolutions and amendments.

100%75%50%25%0%sides with Democrats ↑sides with Republicans ↓19992005201120172023
2025–26119th Congress
Sat as a Republican
4.7%with Democrats
of 467 contested votes
Votes for this Congress are open below
Steepest move: 2023 → 2025, −15 pts — within one party label.
Sat as a DemocratSat as a RepublicanVotes available below

Votes

DateBillVoteTypeCastSided with
Sep 16, 2026S. 2403Retire through Ownership ActLEGISLATIONYEABOTH · NOT SCORED
Sep 16, 2026H.R. 9497Water Resources Development ActLEGISLATIONYEABOTH · NOT SCORED
Sep 16, 2026H.R. 9340Ratepayer Protection ActLEGISLATIONYEABOTH · NOT SCORED
Full textRatepayer Protection ActParty majoritiesDemocrats Yea · Republicans YeaCounts toward scoreNo — both party majorities voted Yea.
Where this lands
YEAVoted with both majorities — not scored
Sep 16, 2026H.J.Res. 213Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the “California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision”LEGISLATIONYEAREP MAJORITY
Sep 16, 2026H.R. 10326PROOF ActLEGISLATIONYEAREP MAJORITY
Sep 16, 2026H.R. 9576National Fraud Enforcement Division ActLEGISLATIONYEABOTH · NOT SCORED
Sep 16, 2026H.R. 5334An Act to amend the Internal Revenue Code of 1986 to allow early childhood educators to take the educator expense deduction, and for other purposesLEGISLATIONYEAREP MAJORITY
Sep 15, 2026H.Con.Res. 93Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with IranLEGISLATIONNAYREP MAJORITY
Sep 15, 2026H.J.Res. 210Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to “California State Nonroad Engine Pollution Control Standards; Ocean-Going Vessels At-Berth; Notice of Decision”LEGISLATIONYEAREP MAJORITY
9 most recent roll calls shown · 467 contested votes scored in the 119th CongressAll votes this Congress →

By policy area

career · legislation
Congress1.6% · 2,700 votes
Economics and Public Finance26.3% · 2,196 votes
Armed Forces and National Security8.1% · 750 votes
Government Operations and Politics2.5% · 446 votes
Energy2.5% · 403 votes
Finance and Financial Sector3.5% · 315 votes
Public Lands and Natural Resources9.6% · 302 votes
Health4.3% · 280 votes
Taxation2.2% · 274 votes
Environmental Protection2.2% · 268 votes
Crime and Law Enforcement6.9% · 218 votes
International Affairs13.2% · 204 votes
Emergency Management18.6% · 194 votes
Labor and Employment4.8% · 188 votes
Transportation and Public Works17.4% · 178 votes
Education12.6% · 175 votes
Law3% · 133 votes
Agriculture and Food21.7% · 129 votes
Immigration4.8% · 104 votes
Housing and Community Development21.2% · 99 votes
Science, Technology, Communications7.6% · 92 votes
Commerce4.1% · 74 votes
Water Resources Development6.8% · 59 votes
Foreign Trade and International Finance5.6% · 54 votes
Native Americans37.5% · 40 votes
Civil Rights and Liberties, Minority Issues8.1% · 37 votes
Social Welfare3.3% · 30 votes
Animals29.6% · 27 votes
Families17.6% · 17 votes
Commemorations6.3% · 16 votes
Too few contested votes to score
Arts, Culture, Religion— · 3 votes
Sports and Recreation— · 2 votes

They also voted in 1 area where the parties never split, so there is nothing to score — never on a contested question: Social Sciences and History.

Blue is the share of votes siding with the Democratic majority; the tick marks 50%.

Service record

14 Congresses
106th · 1999119th · 2025
Republican · House · ID106th–119th
Term datesexact
Members · Idaho
MS

Michael K. Simpson

Representative from Idaho
HOUSER1999–now14 CONGRESSES
Compare
LegislationHEADLINE
10.2%with Democrats
of 10,242 votes · 89.8% with Republicans
Nominations—of 0 votes
All contested10%of 10,242 · combined
Steepest move−15 pts2023→25, as a Republican

Career arc

10050019992025
2025–26 · 119th · Republican · of 467 votes4.7%

Legislation leads. Tap a point to read that Congress.

Votes

Democratic majorityYea
Republican majorityYea
Counts toward scoreNo
Open roll call
Latest 6 shown · 467 contested votes scored in the 119th

By policy area

career
Congress1.6% · 2,700
Economics and Public Finance26.3% · 2,196
Armed Forces and National Security8.1% · 750
Government Operations and Politics2.5% · 446
Energy2.5% · 403
Finance and Financial Sector3.5% · 315
Public Lands and Natural Resources9.6% · 302
Health4.3% · 280
Taxation2.2% · 274
Environmental Protection2.2% · 268
Crime and Law Enforcement6.9% · 218
International Affairs13.2% · 204
Emergency Management18.6% · 194
Labor and Employment4.8% · 188
Transportation and Public Works17.4% · 178
Education12.6% · 175
Law3% · 133
Agriculture and Food21.7% · 129
Immigration4.8% · 104
Housing and Community Development21.2% · 99
Science, Technology, Communications7.6% · 92
Commerce4.1% · 74
Water Resources Development6.8% · 59
Foreign Trade and International Finance5.6% · 54
Native Americans37.5% · 40
Civil Rights and Liberties, Minority Issues8.1% · 37
Social Welfare3.3% · 30
Animals29.6% · 27
Families17.6% · 17
Commemorations6.3% · 16
Arts, Culture, Religion— · 3
Sports and Recreation— · 2

Also voted in 1 area where the parties never split — never on a contested question: Social Sciences and History.

Service record

106th · 1999119th · 2025
Republican106th–119th

Party switchers

John Alexander LoganD→R · IL · 40thWesley Wade WatkinsD→R · OK · 105thBen Nighthorse CampbellD→R · CO · 104th
AD320 × 50 · Anchor