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Democrat · Montana Senate, district 50

Serving since Jan 4, 2021MT 2025–26 session

Portrait of Shane Morigeau, rendered as a two-tone print
Official portrait
3.2%
of roll calls missed, attendance in the bottom tenth of the Montana Senate

Attendance 96.7%; the average within the Montana Senate is 98.9%. Ranks 47th of 50, where 1st has the highest attendance. 2,812 roll calls in the MT 2025–26 session.

Attendance is the share of the roll calls Morigeau could vote on where a yea, nay or present was recorded, ranked within the Montana Senate. A missed vote has many causes, from illness to campaigning; the number says how often, not why.

At a glance

4 measures against the Montana Senate. Morigeau reported $2,590 in the 2026 cycle, in the bottom tenth of State Senate Democrats (median $55.5K). Morigeau sits at −0.52 on the CSIP scale, more conservative than 70% of State Senate Democrats.

The measures on which Morigeau sits furthest from the middle of the Montana Senate, each against the same group, with the CSIP score when there is one. Every number is explained in its own section below.

Attendance

96.7%

Montana Senate average 98.9% · ranks 47th of 50 · 2,812 roll calls

Itemized, 2026

$2,590

State Senate Democrats’ median $55.5K · ranks 709th of 746

CSIP ideology

−0.52

More conservative than 70% of State Senate Democrats · ± 0.04

Party unity

92.0%

Montana Senate average 85% · ranks 25th of 50 · 159 votes against the majority of Montana Senate Democrats

Statements

No statements in this window

Roll calls

2,812

Compared with Montana Senate

Peer group: Montana Senate. Rank 1 is the highest value in the group; the thick bar is Morigeau, the thin grey bar the peer average. The headline is the measure on which Morigeau is most unusual among peers (Methods, §08).

Back to topNext: What politicians say

What Morigeau says

No statements for the MT 2025–26 session.No classified statements (posts, press releases, newsletters, floor speeches) in this time window.

Back to topNext: Policy

Policy

No policy statements for the MT 2025–26 session.No classified statements (posts, press releases, newsletters, floor speeches) in this time window.

Back to topNext: Ideology

Ideology

Morigeau sits at −0.52 on the CSIP scale, left of 0, more conservative than 70% of State Senate Democrats. Approximate range −0.56 to −0.49, which understates the uncertainty; from 117 donors and 888 roll calls.

CSIP, the lab’s Common-Space Ideal Point, places every official, federal and state, on one left–right scale, estimated from roll-call votes, who gives money to whom, and the text of statements. Negative is left of 0, positive right of it; 0 is the centre of the scale, not a definition of “moderate”.

−0.52

CSIP ideal point

Approximate range −0.56 to −0.49. From 117 donors and 888 roll calls. Run 2026-10-25T215945. Blue is left of 0, red right of 0.

← More liberalMore conservative →0Morigeau −0.5State Senate Democrats −0.7Montana Senate +0.2All State Senate +0.1

The outlined dot is Morigeau, coloured by its side of 0 (blue left, red right, deeper further out); the bar through it is the approximate range (±1.96 standard errors), which understates the uncertainty; the grey ticks below are the medians of Morigeau’s groups. 0 is the centre of the scale, not “moderate” by definition.

What this means, and what it doesn’t

The score summarises how an official votes, who funds them and how they talk, relative to everyone else. It does not grade positions as good or bad, and two officials with the same score can differ on any single issue. The ± range is 1.96 standard errors, which understates the uncertainty: scores whose ranges overlap may not differ at all, and even scores whose ranges do not overlap may not differ.

Where Morigeau sits

Every official in each group, on the CSIP scale

−2.0−1.00.0+1.0+2.0← More liberalMore conservative →State Senate Democratsmedian −0.7Morigeau −0.5Montana Senatemedian +0.2All State Senatemedian +0.1
Show the data
Morigeau's CSIP score of −0.52 placed against State Senate Democrats, Montana Senate, All State Senate.
GroupOfficialsMedianShare left of Morigeau
State Senate Democrats825−0.770%
Montana Senate50+0.218%
All State Senate1909+0.130%
How to read the strips

Every small dot is one official on the same scale, coloured by its own score (blue left of 0, red right of 0, grey at 0, deeper further out) and spread up and down only to keep dots apart; where a group is crowded the dots overlap, and darker patches mean more officials. The large outlined dot is Morigeau in every row; the rule is each group’s median. The table under the figure gives the share of each group to the left of Morigeau.

Back to topNext: Money

Money

Morigeau reported $2,590 in the 2026 cycle, 4.7% of the State Senate Democrats’ median of $55.5K. State filings report no small-donation total.

Campaign money from state campaign-finance filings, as aggregates only; the lab never shows an individual donor. Campaigns must report by name every person who gives them more than $200 in a cycle (“itemized”); smaller gifts are reported only as one total (“unitemized”), so donor counts, donor states, employers and occupations describe itemized donors only. State filings report no small-gift total, so these figures add up itemized contributions only.

Election cycle
$2,590

itemized in the 2026 cycle

From 0 itemized donors. State Senate Democrats’ median $55.5K.

Where the money came from

Each square is one percent of itemized contributions in the 2026 cycle.

PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)PACs and other committees: $1,590 (61.4%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)Party committees: $1,000 (38.6%)
  • PACs and other committees61 squares$1,590
  • Party committees39 squares$1,000
Show the data
Sources of Morigeau's money, 2026 cycle, one square per percent
SourceAmountShare
PACs and other committees$1,59061.4%
Party committees$1,00038.6%
What this means, and what it doesn’t

Totals say how much a campaign took in, not how it was spent, and they rise sharply when a seat is up for election; compare cycles with that in mind.

Receipts by cycle

Itemized contributions, 2022 to 2026. The grey line is the State Senate Democrats’ median for 2026.

2022 cycle: $24.0K$24.0K20222026 cycle: $2,590$2,5902026State Senate Democrats median $55.5K
Show the data
Morigeau's receipts by cycle against the 2026 State Senate Democrats median.
ItemValue
2022 cycle$24.0K
2026 cycle$2,590

Top donor states, 2026

Itemized contributions by donor state.

No itemized donors with an address.

Small donations

State filings report no total for small gifts.

Not reported in state filings.

Where itemized donors live

Individuals who gave more than $200, by donor state

Alaska: no dataAKMaine: no dataMEVermont: no dataVTNew Hampshire: no dataNHWashington: no dataWAIdaho: no dataIDMontana: no dataMTNorth Dakota: no dataNDMinnesota: no dataMNIllinois: no dataILWisconsin: no dataWIMichigan: no dataMINew York: no dataNYRhode Island: no dataRIMassachusetts: no dataMAOregon: no dataORNevada: no dataNVWyoming: no dataWYSouth Dakota: no dataSDIowa: no dataIAIndiana: no dataINOhio: no dataOHPennsylvania: no dataPANew Jersey: no dataNJConnecticut: no dataCTCalifornia: no dataCAUtah: no dataUTColorado: no dataCONebraska: no dataNEMissouri: no dataMOKentucky: no dataKYWest Virginia: no dataWVVirginia: no dataVAMaryland: no dataMDDelaware: no dataDEArizona: no dataAZNew Mexico: no dataNMKansas: no dataKSArkansas: no dataARTennessee: no dataTNNorth Carolina: no dataNCSouth Carolina: no dataSCDistrict of Columbia: no dataDCOklahoma: no dataOKLouisiana: no dataLAMississippi: no dataMSAlabama: no dataALGeorgia: no dataGAHawaii: no dataHITexas: no dataTXFlorida: no dataFL
Show the data
Morigeau's itemized individual contributions by donor state, 2026 cycle
StateValue
AlaskaNo data
MaineNo data
VermontNo data
New HampshireNo data
WashingtonNo data
IdahoNo data
MontanaNo data
North DakotaNo data
MinnesotaNo data
IllinoisNo data
WisconsinNo data
MichiganNo data
New YorkNo data
Rhode IslandNo data
MassachusettsNo data
OregonNo data
NevadaNo data
WyomingNo data
South DakotaNo data
IowaNo data
IndianaNo data
OhioNo data
PennsylvaniaNo data
New JerseyNo data
ConnecticutNo data
CaliforniaNo data
UtahNo data
ColoradoNo data
NebraskaNo data
MissouriNo data
KentuckyNo data
West VirginiaNo data
VirginiaNo data
MarylandNo data
DelawareNo data
ArizonaNo data
New MexicoNo data
KansasNo data
ArkansasNo data
TennesseeNo data
North CarolinaNo data
South CarolinaNo data
District of ColumbiaNo data
OklahomaNo data
LouisianaNo data
MississippiNo data
AlabamaNo data
GeorgiaNo data
HawaiiNo data
TexasNo data
FloridaNo data
0

itemized donors

People who gave more than $200

No itemized individual money.

How to read the map

Every state the same size. Darker states gave more itemized money; hatched states had no itemized donors; the outlined state is Montana. Gifts of $200 or less carry no address and are left out.

Top donor occupations

Itemized, 2026 cycle.

No occupations reported.

Top committees

PAC and committee contributions, 2026 cycle.

  1. MISSOULA COUNTY DEMOCRATIC CENTRAL COMMITTEE$1,000
  2. MONTANA ELECTRIC COOPERATIVES PAC$470
  3. MONTANANS RISING LEADERSHIP FUND$470
  4. MDU RESOURCES GROUP GOOD GOVERNMENT FUND$200
  5. MONTANA BANKERS PAC$200

Top employers

Itemized, 2026 cycle.

No employers reported.

Aggregates only. Individual donors are never named.

Back to topNext: Votes

Votes

Morigeau voted with the majority of Montana Senate Democrats on 92.0% of party-line votes and missed 3.2% of 2,812 roll calls. Montana Senate on average: 85% party unity, 98.9% attendance. Across all roll calls, Morigeau voted against the majority of Montana Senate Democrats 159 times.

2,812 roll calls Morigeau could vote on in the MT 2025–26 session, compared with Montana Senate. Attendance is the share with a vote recorded. Party unity counts only party-line roll calls, where most Democrats and most Republicans voted on opposite sides, and is the share of those where Morigeau voted with the majority of Montana Senate Democrats. The count of votes against that majority covers every roll call where the majority took a side.

159

votes against the majority of Montana Senate Democrats

Party unity 92.0%, Montana Senate average 85%, ranks 25th of 50. 2,812 roll calls in the MT 2025–26 session.

Attendance and party unity

The thick bar is Morigeau, the thin grey bar the Montana Senate average. The scale runs from 80% to 100% to show the gap.

80%100%
Morigeau
Peers
Rank
Attendance
96.7%
98.9%
47th of 50
Party unity
92.0%
85%
25th of 50
Show the data
Morigeau's attendance and party unity against Montana Senate.
RowMorigeauPeers
Attendance96.7%98.9%
Party unity92.0%85%
What this means, and what it doesn’t

A missed roll call has many causes, from illness to campaigning, so attendance says how often, not why. A vote against the majority can be on procedure as well as substance, and many fall on roll calls where both parties split; the key votes below show the ones that decided something.

Key votes

Roll calls the lab flags as key

No votes in this window met the key-vote rules.

How key votes are chosen

Automatically: a final-passage or override vote where the measure became law, the margin was under 10%, at least 10% of either party voted against its majority, or the bill was among the 25 most mentioned in officials’ own statements. Up to 25 per window, most recent first; five are shown. Bars show yea on the left, nay on the right, per party.

Votes most often with

The colleagues who voted the same way as Morigeau most often

  1. Ellie BoldmanD2,704 shared votes93%
  2. Sara NovakD2,712 shared votes93%
  3. Pat FlowersD2,670 shared votes93%
  4. Willis CurdyD2,720 shared votes92%
  5. Chris PopeD2,720 shared votes92%

Votes least often with

The colleagues who voted the same way as Morigeau least often

  1. Daniel EmrichR2,700 shared votes49%
  2. Carl GlimmR2,709 shared votes53%
  3. Jeremy TrebasR2,709 shared votes54%
  4. Mark NolandR2,715 shared votes56%
  5. Becky BeardR2,714 shared votes57%
How to read the agreement lists

The share of roll calls both members voted on where they voted the same way, among colleagues sharing at least 50 such votes. High agreement with members of the other party is common on routine votes.

Full voting record

MT 2025–26 session, loads in batches

Back to topNext: Legislation

Legislation

No bills for the MT 2025–26 session.No sponsored or cosponsored bills are recorded for this official in this time window.

Back to topNext: Online

Online

A site that has not changed in 90 days. Morigeau’s official site had 1 page when last crawled on Oct 1, 2026.

The lab crawls Morigeau’s official and campaign websites (weekly for Congress, monthly for the states) and keeps every page’s text, so changes can be read later; it also records social accounts and describes the images Morigeau posts with a vision model.

Websites

How to read the counts

“Pages crawled” is the size of the site at the last crawl; “changes in 90 days” counts pages whose text differed from the previous crawl. Sites change for many routine reasons, such as new press releases, so a high count is not by itself notable.

Images Morigeau posted

No images from Morigeau’s posts have been described.

About the descriptions

Written by a vision model and may be wrong. Open the post to see the original. Five are shown; the toggle shows the rest.

State floor speeches

No transcribed state floor speeches are matched to this legislator yet.

Floor speeches

Transcribed from chamber video or captions by the lab. They are not classified for kinds of statement.

Back to topNext: Methods and sources

Methods and sources

How this page was made. Profile built Oct 28, 2026; site last built Oct 28, 2026. Every number on the page is computed from the sources listed here, by the same rules for every official; nothing is written by hand.

The headline

The headline is the measure on which Morigeau is most unusual among Montana Senate, chosen by one rule for every official of every party. The candidates are the rate of each kind of statement and of extreme labels, party unity, attendance, the small-donor share, the in-state share and total receipts of the latest cycle, the share of sponsored bills that got out of committee, talk-to-bills agreement, and the CSIP score’s place within the party group.

The builder ranks every measure within the same peer group the page compares it with, and writes each official’s percentile: the share of the group below the value, ties counting half, so 0.5 is the median and a value shared by many never ranks first. A measure’s score is how far that percentile sits from the median (0 in the middle, 0.5 at either end), and the highest score leads if it is above 0.25, outside the middle half of the group. Scores within 0.03 of each other are a tie, broken in this order: votes against the party majority, kinds of statement, ideology, roll calls missed, small donations, in-state money, legislation, agreement, extreme labels, receipts.

A measure counts only with at least 200 statements, 100 roll calls or 5 sponsored bills behind it and a peer group of at least 10. Two things never lead: high party unity or attendance, where most members sit, and a high rate of a kind of statement backed by fewer than 10 statements. When nothing qualifies, the headline is a neutral fact instead: statements classified, or years in office. The wording always names the direction (“in the bottom 5% of …”, “votes against the majority of …”).

Identifiers

Profile id
83f50436-e02e-41b0-b6bb-dd44973665c8
Open States
ocd-person/83f50436-e02e-41b0-b6bb-dd44973665c8

Bulk files with the same data for every official:

Freshness of this profile’s data

  • What politicians sayOct 27, 20261 days agoMembers of Congress: tweets since 2017; press releases, newsletters and floor speeches since 2022. State legislators: tweets since May 2024. Governors: tweets since January 2025. Labels from an LLM classifier.
  • Roll calls (state)Oct 21, 20267 days agoOpen States floor roll calls, 2019 on (none for AK and MO).
  • Bills (state)Oct 28, 2026todayOpen States bills and sponsors, 2019 on; stages from roll calls.
  • Campaign money (state)no dateState campaign-finance agencies, 2019 on; aggregates only.
  • Ideology (CSIP)Oct 25, 20263 days agoCommon-Space Ideal Points (CSIP), current validated run.
  • WebsitesOct 25, 20263 days agoWeekly crawls of federal sites since April 2026; monthly state crawls since June 2026.
  • State floor speechesOct 21, 20267 days agoState floor speech turns (published transcripts and captions), 2020 on; not LLM-classified.

How the measures work

What politicians say
Every post, press release, newsletter and congressional floor speech is read by a language model and marked for personal attacks, policy criticism, policy discussion, bipartisanship and credit claiming. A statement can be in several. Rates are shares of statements in the window. The methods paper.
Extreme labels
A statement has an extreme label when it calls a politician, party or policy “far left”, “far right”, “MAGA”, “extreme”, “radical”, “woke”, “fascist” or “communist”. The target is who the label is aimed at.
Policy areas and agreement
Statements and bills share 25 Congressional Research Service policy areas (state bills are assigned by a language model). Agreement is 1 − Jensen–Shannon distance between the two distributions, shown with at least 20 policy statements and 5 bills.
Ideology (CSIP)
Common-Space Ideal Points place federal and state officials on one left–right scale, estimated jointly from roll calls, campaign contributions and the text of statements, with standard errors. Only a validated run is shown. The methods paper.
Campaign money
Campaigns report by name only donors who give more than $200 in a cycle; smaller gifts are reported as one total. Federal totals and the small-donor share come from the FEC’s financial summaries of each campaign committee. Donor counts, donor states, employers and occupations cover itemized donors only. State filings report no small-gift totals, so state figures are itemized only. The lab never publishes donor names.
Votes and key votes
Attendance, party unity and the count of votes against the majority of an official’s own party come from roll calls (Voteview for Congress, chamber records for the states). Key votes are final-passage or override votes that became law, were decided by under 10%, saw at least 10% of a party vote against its majority, or concerned one of the 25 bills most mentioned in officials’ statements.
Peers and ranks
Comparisons are with the same party, chamber and level (for example House Democrats); state legislators are compared within their state and chamber for votes. Every comparison names its group. Rank 1 is the highest value in the group; tied values share the average of their ranks, and the percentile is the share of the group below the value, ties counting half.

America’s Political Pulse · Polarization Research Lab

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