Nonpartisan · Data from OpenStates / Plural Policy · Oregon
Democratic
· Representative
Mark Gamba
Represents District 41 in the House of Representatives.
Votes with Democrats
100%
on 57 party-line votes · House Democrats median 98%
Cast a vote
100%
Yea or Nay on 210 of 210 roll calls · House median 91%
Their bills that became law
1 of 7
as a primary sponsor, this session · Democrats median 4
Roll calls on record
210
2026 Legislative Measures
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 2026 Legislative Measures.
How Mark Gamba 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 Mark Gamba 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. Mark Gamba is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
0 of 57 party-line votes.
They voted with most Democrats on every party-line vote this session.
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
HB4128 · Relating to sale of single-family residences.
House Committee Do pass with amendments. (Printed A-Eng.) · 2026-02-12 · Passed 7–6
HB4098 · Relating to violations of the Insurance Code as unlawful trade practices.
House Third Reading · 2026-02-18 · Failed 28–30
HB4126 · Relating to road usage charges; declaring an emergency.
House Committee Do pass with amendments and be referred to Ways and Means by prior reference. (Printed A-Eng.) · 2026-02-16 · Passed 5–2
HB4008 · Relating to a transit funding task force; declaring an emergency.
House Committee Do pass with amendments and be referred to Ways and Means by prior reference. (Printed A-Eng.) · 2026-02-16 · Passed 5–2
HB4081 · Relating to photo radar in highway work zones.
House Committee Do pass with amendments and be referred to Ways and Means by prior reference. (Printed A-Eng.) · 2026-02-16 · Passed 6–1
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.
Greg SmithRepublican · District 57 · 63 shared contested votes
48%
Kevin MannixRepublican · District 21 · 63 shared contested votes
48%
Mark OwensRepublican · District 60 · 55 shared contested votes
36%
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.
← Oregon Delegation
YeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayYeaYeaNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaNayYea
Their bills, from filing to law
Bills Mark Gamba 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.
Introduced7
Out of committee3
Passed one chamber3
Passed both chambers1
Became law1
Never left committee0
For comparison, the median Democratic member of the House has 4 bills that became law this session.
Relating to law enforcement operations; and declaring an emergency.
The Act says that a person can sue a person who under color of law comes in property without a warrant or an exception. (Flesch Readability Score: 62.6). [Digest: The Act sets rules for when federal agents or agents from another state carry out operations…
Became lawChapter 58, (2026 Laws): Effective date March 31, 2026. · 2026-04-06
Relating to payments to the federal government; prescribing an effective date.
The Act lets the state not pay money to the U.S. if the U.S. unlawfully keeps money away from the state. (Flesch Readability Score: 76.7). Authorizes the Governor to direct state agencies to withhold moneys owed to the federal government if federal funds are being…
FailedAt President's desk upon adjournment. · 2026-03-06
Relating to revenue estimates; prescribing an effective date.
The Act adds detail for methods of making estimates of how much tax money comes into the General Fund. (Flesch Readability Score: 61.6). Prescribes methodology for the preparation of revenue estimates used in the budgeting process and as applicable to the surplus revenue refund process.…
FailedIn committee upon adjournment. · 2026-03-06
Relating to portable solar photovoltaic energy devices; prescribing an effective date.
Allows a person to use a plug-in solar power device. (Flesch Readability Score: 61.3). Allows a retail electricity consumer to install and use portable solar photovoltaic energy devices with up to a total maximum generating capacity of 1,200 watts. Defines "portable solar photovoltaic energy device."…
FailedIn committee upon adjournment. · 2026-03-06
Relating to energy generation; prescribing an effective date.
Makes a power provider tell the public the costs to store nuclear waste made from making electric power. (Flesch Readability Score: 61.6). [Digest: Makes a power provider disclose the costs to store the waste made from making electric power. (Flesch Readability Score: 63.6).] Requires an…
FailedIn committee upon adjournment. · 2026-03-06
Relating to energy; prescribing an effective date.
Makes each power company create a program for buying grid services. (Flesch Readability Score: 64.9). Requires each electric company to develop a distributed power plant program for the procurement of grid services to be provided by distributed energy resources. Specifies the grid services that may…
FailedIn committee upon adjournment. · 2026-03-06
Relating to road usage charges; declaring an emergency.
The Act would have ODOT biennially recommend a rate for the per-mile road usage charge that would raise the money needed to keep up the highways in this state. (Flesch Readability Score: 60.7). Requires the Department of Transportation to submit a biennial report to the…
FailedIn committee upon adjournment. · 2026-03-06
Descriptions are the legislature’s own synopsis. Bill data from LegiScan, CC BY 4.0.
Loading committees…
HB5204 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
HB4082 · 2026-03-06
Relating to housing for older persons; and prescribing an effective date. (House Third Reading in Concurrence)
SB5701 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
HB4138 · 2026-03-06
Relating to limitations on the actions of public employees; and declaring an emergency. (House Third Reading in Concurrence)
HB5203 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
SB5702 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
SB1502 · 2026-03-06
Relating to proposed legislative measures to be filed by the Secretary of State; and prescribing an effective date. (House Third Reading)
SB5703 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
HB4108 · 2026-03-06
Relating to annexation of land noncontiguous to a city. (House Third Reading in Concurrence)
HB4159 · 2026-03-06
Relating to the Oregon Government Ethics Commission. (House Third Reading in Concurrence)
HB4179 · 2026-03-06
Relating to entities created by the Oregon Health and Science University. (House Third Reading in Concurrence)
SB1585 · 2026-03-06
Relating to matching grants for cities; and prescribing an effective date. (House Third Reading)
SB1501 · 2026-03-06
Relating to the Moda Center; and declaring an emergency. (House Third Reading)
SB1601 · 2026-03-06
Relating to state financial administration; and declaring an emergency. (House Third Reading)
SCR205 · 2026-03-06
Adjourning sine die the 2026 regular session of the Eighty-third Legislative Assembly. (House Read and Adopted)
HB4145 · 2026-03-06
Relating to firearms; and declaring an emergency. (House Third Reading in Concurrence)
SCR209 · 2026-03-06
Establishing deadlines for presession-filed legislative measures for the 2027 regular session of the Eighty-fourth Legislative Assembly. (House Read and Adopted)
HB4121 · 2026-03-05
Relating to emergency management. (House Third Reading)
HB4018 · 2026-03-05
Relating to elections; and declaring an emergency. (House Third Reading)
SB1515 · 2026-03-05
Relating to wrongful convictions; and declaring an emergency. (House Third Reading)
SB1516 · 2026-03-05
Relating to public safety; and declaring an emergency. (House Third Reading)
SB1565 · 2026-03-05
Relating to snowmobiles; and prescribing an effective date. (House Third Reading)
SB1544 · 2026-03-05
Relating to transportation; and prescribing an effective date. (House Third Reading)
HB4021 · 2026-03-05
Relating to administrative rules; and prescribing an effective date. (House Third Reading in Concurrence)
HB4037 · 2026-03-05
Relating to housing; and prescribing an effective date. (House Third Reading in Concurrence)
SB1525 · 2026-03-05
Relating to organizations relevant to Oregon's coastal resources; and prescribing an effective date. (House Third Reading)
HB4100 · 2026-03-05
Relating to bulk fuel terminals; and declaring an emergency. (House Third Reading)
HB4075 · 2026-03-05
Relating to hospital finance; and declaring an emergency. (House Third Reading)
SB1517 · 2026-03-05
Relating to civil litigation; and declaring an emergency. (House Third Reading)
SB1595 · 2026-03-05
Relating to professional workforce; and declaring an emergency. (House Third Reading)
HB4016 · 2026-03-04
Relating to tax compliance; and prescribing an effective date. (House Third Reading)
HB4070 · 2026-03-04
Relating to health care; and prescribing an effective date. (House Third Reading in Concurrence)
HB4036 · 2026-03-04
Relating to affordable housing; and declaring an emergency. (House Third Reading)
HB4086 · 2026-03-04
Relating to economic development; and prescribing an effective date. (House Third Reading)
HB4084 · 2026-03-04
Relating to economic development; and prescribing an effective date. (House Third Reading)
HB4127 · 2026-03-04
Relating to Medicaid payments to reproductive health care providers; and declaring an emergency. (House Third Reading)
HB4041 · 2026-03-04
Relating to public safety; and declaring an emergency. (House Third Reading in Concurrence)
HB4035 · 2026-03-04
Relating to land use; and declaring an emergency. (House Third Reading in Concurrence)
HB4060 · 2026-03-04
Relating to fluorescent lamps; and declaring an emergency. (House Third Reading in Concurrence)
HB4076 · 2026-03-04
Relating to energy; and prescribing an effective date. (House Third Reading in Concurrence)
HB4177 · 2026-03-04
Relating to public meetings; and prescribing an effective date. (House Third Reading)
SB1567 · 2026-03-04
Relating to mixed income housing; and prescribing an effective date. (House Third Reading)
HB4153 · 2026-03-04
Relating to farm stores. (House Third Reading)
HB4128 · 2026-03-04
Relating to sale of single-family residences. (House Third Reading in Concurrence)
SB1546 · 2026-03-04
Relating to artificial intelligence companions. (House Third Reading)
SB1575 · 2026-03-04
Relating to hospice licensure; and declaring an emergency. (House Third Reading)
SB1510 · 2026-03-04
Relating to taxation; and prescribing an effective date. (House Third Reading)
SB1535 · 2026-03-04
Relating to child care; and prescribing an effective date. (House Third Reading)
SB1509 · 2026-03-04
Relating to electors of President and Vice President of the United States; and prescribing an effective date. (House Third Reading)
SB1521 · 2026-03-04
Relating to local requirements to develop affordable housing. (House Third Reading)
SB1568 · 2026-03-04
Relating to perinatal services; and declaring an emergency. (House Third Reading)
HB4020 · 2026-03-03
Relating to permits; and prescribing an effective date. (House Third Reading)
HB4007 · 2026-03-03
Relating to transportation; and prescribing an effective date. (House Third Reading)
HB4062 · 2026-03-03
Relating to evaluating Business Oregon programs; and declaring an emergency. (House Third Reading)
SB1598 · 2026-03-03
Relating to access to health services; and declaring an emergency. (House Third Reading)
HB4130 · 2026-03-03
Relating to farm use. (House Third Reading)
HB4040 · 2026-03-03
Relating to health care; and declaring an emergency. (House Third Reading)
SCR206 · 2026-03-03
In memoriam: State Senator Aaron Lionel Woods. (House Read and Adopted)
HB4014 · 2026-03-03
Relating to state finance; declaring an emergency. (House Motion to Rerefer)
HB4014 · 2026-03-03
Relating to state finance; declaring an emergency. (House Third Reading)
Complete voting record from LegiScan (showing the 60 most recent of 210 total roll-call votes this session).
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