Nonpartisan · Data from OpenStates / Plural Policy · Montana
JK
Democratic
· Representative
Jonathan Karlen
Represents District 98 in the House of Representatives.
Votes with Democrats
91%
on 1,009 party-line votes · House Democrats median 95%
Cast a vote
100%
Yea or Nay on 3,130 of 3,130 roll calls · House median 99%
Their bills that became law
2 of 9
as a primary sponsor, this session · Democrats median 2
Roll calls on record
3,130
2025 Regular Session
Votes and bills updated Oct 5, 2026 from LegiScan (CC BY 4.0), which republishes the legislature’s own records. Profile details from OpenStates / Plural Policy. Figures cover 2025 Regular Session.
How Jonathan Karlen votes
A party-line vote is a roll call where most voting Democrats and most voting Republicans took opposite sides. Absences and not-voting are never counted. Same method as our Congress pages.
Where Jonathan Karlen sits in the House
Each dot is one member of the House, placed by how often they voted on the Democratic side of party-line votes. Jonathan Karlen is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
90 of 1,009 party-line votes, most recent 10 shown.
HB863 · Generally revise state finance laws
(H) 2nd Reading Senate Amendments Not Concurred · 2025-04-29 · Failed 38–62 · most Democrats voted the other way
SB535 · Revise laws related to experimental treatments
(H) Reconsidered Previous Action; Remains in 3rd Reading Process · 2025-04-25 · Passed 50–48 · most Democrats voted the other way
SB535 · Revise laws related to experimental treatments
(H) 3rd Reading Concurred · 2025-04-25 · Passed 49–48 · most Democrats voted the other way
SB535 · Revise laws related to experimental treatments
(H) Reconsidered Previous Action; Remains in 3rd Reading Process · 2025-04-25 · Passed 50–48 · most Democrats voted the other way
SB535 · Revise laws related to experimental treatments
(H) 3rd Reading Failed · 2025-04-25 · Failed 50–50 · most Democrats voted the other way
SB553 · Generally revise state policy laws
(H) 3rd Reading Concurred · 2025-04-25 · Passed 62–38 · most Democrats voted the other way
HB921 · Constitutional amendment prohibiting distribution or receipt of child pornography
(H) 2nd Reading Senate Amendments Concurred · 2025-04-25 · Passed 58–42 · most Democrats voted the other way
SB324 · Revise vehicle registration fees and allocate revenue for bridges and victims of crime
(H) 3rd Reading Concurred · 2025-04-24 · Passed 51–49 · most Democrats voted the other way
SB534 · Provide property tax exemption for wireless infrastructure
(H) 3rd Reading Concurred · 2025-04-24 · Passed 65–35 · most Democrats voted the other way
SB560 · Provide for a hospital community benefit fee
(H) 3rd Reading Concurred · 2025-04-24 · Passed 72–28 · most Democrats voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
SB535 · Revise laws related to experimental treatments
(H) 3rd Reading Failed · 2025-04-25 · Failed 50–50
HJ67 · Study resolution on impacts of federal funding changes on OPI and OCHE
(H) 2nd Reading Not Passed · 2025-04-25 · Failed 50–50
SB287 · Generally revise state finance laws
(H) 2nd Reading Not Concurred · 2025-04-24 · Failed 50–50
SB326 · Generally revise laws related to MEDIA Act film tax credits
(H) Reconsidered Previous Action; Placed on 2nd Reading · 2025-04-18 · Failed 49–49
SB312 · Generally revise laws for crime victims
(H) 2nd Reading Not Concurred · 2025-04-14 · Failed 50–50
Republicans they vote with most
Share of contested roll calls (the losing side got at least 10%) where both voted and landed on the same side. Unanimous votes are left out, because on those everyone agrees.
Sidney FitzpatrickRepublican · District 35 · 1,458 shared contested votes
89%
Thedis CroweRepublican · District 15 · 1,379 shared contested votes
89%
Scott DeMaroisRepublican · District 15 · 1,507 shared contested votes
86%
Their session, month by month
Dark bars are roll calls they were recorded on each month; the red part is the ones without a Yea or Nay (0 in all). Gaps are months the chamber wasn’t voting.
← Montana Delegation
NayYeaYeaYeaYeaYeaNayYeaYeaYeaYeaNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayNayYeaYeaYeaYeaYeaYeaYeaYeaNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayYeaYeaNayYeaYeaNayYeaYeaNayYeaYeaYea
Their bills, from filing to law
Bills Jonathan Karlen was a primary sponsor of this session. Most bills from either party never leave committee; in Illinois many never get past the Assignments or Rules committee.
Introduced9
Out of committee5
Passed one chamber5
Passed both chambers2
Became law2
Never left committee0
For comparison, the median Democratic member of the House has 2 bills that became law this session.
What their bills are about
Local Government 2Privacy 2Rule Making 2Transportation 2Motor Vehicles 2Taxation–Transportation 2
Revise online data privacy laws for K-12 pupil records
Failed(S) Died in Standing Committee · 2025-05-22
Revise laws related to metropolitan planning orgs and transportation planning
Failed(H) Died in Process · 2025-05-20
Require trappers to post notice signs near trails on public lands
Failed(H) Died in Process · 2025-05-20
Revise election laws to remove continuous tabulation requirement
Failed(H) Died in Process · 2025-05-20
Provide for restitution payments to children of certain homicide victims
Became lawChapter Number Assigned · 2025-05-13
Study resolution analyzing water re-use in the state
Became law(H) Filed with Secretary of State · 2025-05-06
Descriptions are the legislature’s own synopsis. Bill data from LegiScan, CC BY 4.0.
Loading committees…
SJ35 · 2025-04-30
Interim study of voter list maintenance and integrity ((H) 2nd Reading Concurred)
SB324 · 2025-04-30
Revise vehicle registration fees and allocate revenue for bridges and victims of crime ((H) 2nd Reading Conference Committee Report Adopted)
HB381 · 2025-04-30
Provide for educational credit for students volunteering in long term care, nursing home, home care, and child care settings ((H) 3rd Reading Governor's Proposed Amendments Adopted)
SJ37 · 2025-04-30
Interim survey of behavioral health services in Montana ((H) 3rd Reading Concurred)
SJ36 · 2025-04-30
Study dependent neglect standards for prosecutors ((H) 3rd Reading Concurred)
HB850 · 2025-04-30
Provide licensing and regulation of community health workers ((H) 3rd Reading Passed as Amended by Senate)
HB818 · 2025-04-30
Ban foreign funding for ballot measures ((H) 3rd Reading Conference Committee Report Adopted)
SB446 · 2025-04-30
Revise laws related to healthcare utilization review ((H) 3rd Reading Free Conference Committee Report Adopted)
HB936 · 2025-04-30
Authorize transfers and other necessary measures to implement HB 2-Section B ((H) 3rd Reading Passed as Amended by Senate)
HB231 · 2025-04-30
Revise property tax rates for certain property ((H) 2nd Reading Conference Committee Report Adopted)
HB231 · 2025-04-30
Revise property tax rates for certain property ((H) 3rd Reading Conference Committee Report Adopted)
SB40 · 2025-04-30
Revise supreme court public records laws by opening deliberations and files to the public ((H) 3rd Reading Free Conference Committee Report Adopted)
SB524 · 2025-04-30
Revise laws relating to category D assisted living facilities ((H) 3rd Reading Conference Committee Report Adopted)
HB853 · 2025-04-30
Revise fees for licensed establishments ((H) 3rd Reading Passed as Amended by Senate)
HB2 · 2025-04-30
General Appropriations Act ((H) 3rd Reading Passed as Amended by Senate)
HB932 · 2025-04-30
Generally revise conservation financing laws ((H) 3rd Reading Passed as Amended by Senate)
SJ48 · 2025-04-30
Interim study of the public health and safety impacts of marijuana legalization ((H) 2nd Reading Concurred)
SJ48 · 2025-04-30
Interim study of the public health and safety impacts of marijuana legalization ((H) 3rd Reading Concurred)
HB513 · 2025-04-30
Revise laws related to use of name, voice, and likeness of individuals and penalties for unauthorized use ((H) 3rd Reading Governor's Proposed Amendments Adopted)
SJ46 · 2025-04-30
Interim study of food security and agricultural prosperity ((H) 2nd Reading Not Concurred)
HB505 · 2025-04-30
Allow Montana housing infrastructure revolving loan fund to retain its interest and income and provide for fund transfers ((H) 3rd Reading Passed as Amended by Senate)
SJ49 · 2025-04-30
Interim study of youth and family behavioral health prevention ((H) 2nd Reading Concurred)
SJ49 · 2025-04-30
Interim study of youth and family behavioral health prevention ((H) 3rd Reading Concurred)
HB913 · 2025-04-30
Authorize transfers and other necessary measures to implement HB2 Section D ((H) 3rd Reading Passed as Amended by Senate)
SB319 · 2025-04-30
Generally revise health care laws related to doulas ((H) 3rd Reading Conference Committee Report Adopted)
SB324 · 2025-04-30
Revise vehicle registration fees and allocate revenue for bridges and victims of crime ((H) 3rd Reading Conference Committee Report Adopted)
HB682 · 2025-04-30
Generally revise laws regarding gender transition treatment ((H) 3rd Reading Free Conference Committee Report Adopted)
HB329 · 2025-04-30
Make the Montana ammunition act permanent ((H) 3rd Reading Conference Committee Report Adopted)
SB472 · 2025-04-30
Revise penalties for violations under 310 permit process ((H) 3rd Reading Free Conference Committee Report Adopted)
HB863 · 2025-04-30
Generally revise state finance laws ((H) 2nd Reading Senate Amendments Concurred)
HB863 · 2025-04-30
Generally revise state finance laws ((H) 3rd Reading Passed as Amended by Senate)
SJ42 · 2025-04-30
Interim study of noxious weed control ((H) 2nd Reading Concurred)
SJ42 · 2025-04-30
Interim study of noxious weed control ((H) 3rd Reading Concurred)
HB935 · 2025-04-30
Limits to Fox Hills-Hell Creek aquifer withdrawals ((H) 3rd Reading Passed as Amended by Senate)
HJ34 · 2025-04-30
Resolution supporting Montana's beef producers ((H) 3rd Reading Passed as Amended by Senate)
HB117 · 2025-04-30
Establish criminal justice data warehouse priorities ((H) 3rd Reading Free Conference Committee Report Adopted)
SJ35 · 2025-04-30
Interim study of voter list maintenance and integrity ((H) 3rd Reading Concurred)
HB936 · 2025-04-29
Authorize transfers and other necessary measures to implement HB 2-Section B ((H) 2nd Reading Senate Amendments Concurred)
HB511 · 2025-04-29
Provide grant funding for firefighting training facilities ((H) 3rd Reading Passed as Amended by Senate)
HB935 · 2025-04-29
Limits to Fox Hills-Hell Creek aquifer withdrawals ((H) 2nd Reading Senate Amendments Concurred)
HJ72 · 2025-04-29
Interim study of personal data sharing by DOT ((H) 3rd Reading Passed)
HB12 · 2025-04-29
Montana historic preservation grants ((H) 3rd Reading Passed as Amended by Senate)
HB932 · 2025-04-29
Generally revise conservation financing laws ((H) 2nd Reading Senate Amendments Concurred)
HB5 · 2025-04-29
Long-range building appropriations ((H) 3rd Reading Passed as Amended by Senate)
HB4 · 2025-04-29
Appropriations by budget amendment ((H) 3rd Reading Passed as Amended by Senate)
HB505 · 2025-04-29
Allow Montana housing infrastructure revolving loan fund to retain its interest and income and provide for fund transfers ((H) 2nd Reading Senate Amendments Concurred)
HB513 · 2025-04-29
Revise laws related to use of name, voice, and likeness of individuals and penalties for unauthorized use ((H) 2nd Reading Governor's Proposed Amendments Adopted)
HB913 · 2025-04-29
Authorize transfers and other necessary measures to implement HB2 Section D ((H) 2nd Reading Senate Amendments Concurred)
SB319 · 2025-04-29
Generally revise health care laws related to doulas ((H) 2nd Reading Conference Committee Report Adopted)
HB682 · 2025-04-29
Generally revise laws regarding gender transition treatment ((H) 2nd Reading Free Conference Committee Report Adopted)
SB218 · 2025-04-29
Provide for private right of action for injuries caused by certain medical interventions to treat gender dysphoria ((H) Reconsidered Previous Action; Placed on 2nd Reading)
HB924 · 2025-04-29
Generally revise state finance laws ((H) 3rd Reading Passed as Amended by Senate)
HB381 · 2025-04-29
Provide for educational credit for students volunteering in long term care, nursing home, home care, and child care settings ((H) 2nd Reading Governor's Proposed Amendments Adopted)
HB446 · 2025-04-29
Revise indecent exposure laws ((H) 3rd Reading Governor's Proposed Amendments Adopted)
SJ46 · 2025-04-29
Interim study of food security and agricultural prosperity ((H) Business and Labor–Be Concurred In)
SJ37 · 2025-04-29
Interim survey of behavioral health services in Montana ((H) 2nd Reading Concurred)
SJ34 · 2025-04-29
Interim study of child care ((H) 2nd Reading Not Concurred)
SJ33 · 2025-04-29
Interim study of the prescription drug supply chain ((H) 3rd Reading Concurred)
HB850 · 2025-04-29
Provide licensing and regulation of community health workers ((H) 2nd Reading Senate Amendments Concurred)
SJ36 · 2025-04-29
Study dependent neglect standards for prosecutors ((H) 2nd Reading Concurred)
Complete voting record from LegiScan (showing the 60 most recent of 3130 total roll-call votes this session).
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