Nonpartisan · Data from OpenStates / Plural Policy · Indiana
Republican
· Representative
Tim O’Brien
Represents District 78 in the House of Representatives.
Votes with Republicans
99%
on 170 party-line votes · House Republicans median 98%
Cast a vote
99%
Yea or Nay on 387 of 388 roll calls · House median 95%
Their bills that became law
2 of 7
as a primary sponsor, this session · Republicans median 1
Roll calls on record
388
2026 Regular Session
Votes and bills updated Oct 4, 2026 from LegiScan (CC BY 4.0), which republishes the legislature’s own records. Profile details from OpenStates / Plural Policy. Figures cover 2026 Regular Session.
How Tim O’Brien 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 Tim O’Brien 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. Tim O’Brien is circled.
Always on the Republican sideAlways on the Democratic side
Times they broke with their party
1 of 170 party-line votes.
HB1038 · Gaming matters.
House – Rules Suspended. Conference Committee Report 1 · 2026-02-27 · Passed 56–37 · most Republicans voted the other way
Closest votes they cast
Roll calls decided by the fewest votes, one per bill.
SB0277 · Indiana department of environmental management.
House – Amendment #3 (Bauer) failed · 2026-02-23 · Failed 48–49
HB1119 · Execution methods.
House – Third reading · 2026-01-28 · Failed 48–47
HB1368 · Carbon.
House – Concurrence defeated · 2026-02-26 · Passed 48–42
SB0239 · Various education matters.
House – Amendment #1 (DeLaney) failed · 2026-02-23 · Failed 43–51
SB0285 · Housing matters.
House – Third reading · 2026-02-24 · Passed 53–44
Democrats 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.
Randy NovakDemocrat · District 9 · 194 shared contested votes
28%
Wendy Dant ChesserDemocrat · District 71 · 195 shared contested votes
25%
Mitch GoreDemocrat · District 89 · 167 shared contested votes
24%
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 (1 in all). Gaps are months the chamber wasn’t voting.
← Indiana Delegation
YeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYeaYea
Their bills, from filing to law
Bills Tim O’Brien 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 committee4
Passed one chamber3
Passed both chambers2
Became law2
Never left committee3
For comparison, the median Republican member of the House has 1 bills that became law this session.
Public safety procedures.
Public safety procedures. Requires the department of correction to electronically notify, at least seven days in advance, the: (1) county sheriff; (2) prosecuting attorney; and (3) chief of police; of the county or municipality into which the department will release a serious violent felon, including…
Became lawPublic Law 57 · 2026-03-03
Broker companies.
Broker companies. Requires a broker company who refers a client or customer to another broker company to disclose if the broker company may be compensated for referring the client or customer.
Became lawPublic Law 30 · 2026-02-24
Recognizing the seriousness of the U.S. national debt and its threat to national security.
Recognizing the seriousness of the U.S. national debt and its threat to national security. A HOUSE RESOLUTION recognizing the seriousness of the U.S. national debt and its threat to national security.
Out of committeeRepresentative Carbaugh added as coauthor · 2026-02-18
Emergency ambulance services.
Emergency ambulance services. Specifies that emergency medical services, including emergency ambulance services, are essential services in Indiana. Specifies that the provision of emergency medical services is an essential purpose of political subdivisions. Requires the county commissioners of each county to: (1) identify areas that are…
Passed one chamberSenator Bohacek added as third sponsor · 2026-02-12
To commemorate the 250th Anniversary, or semiquincentennial, of the founding of the United States of America.
Not out of committeeFirst reading: adopted · 2026-01-28
Recognizing the 250th anniversary of the United States of America and the Irish ties to the historical event.
Recognizing the 250th anniversary of the United States of America and the Irish ties to the historical event. Recognizing the 250th anniversary of the United States of America and the Irish ties to the historical event.
Not out of committeeFirst reading: adopted · 2026-01-27
Recognizing the seriousness of the US national debt and its threat to national security.
Recognizing the seriousness of the US national debt and its threat to national security. Recognizing the seriousness of the US national debt and its threat to national security.
Not out of committeeFirst reading: referred to the Committee on Ways and Means · 2026-01-22
Descriptions are the legislature’s own synopsis. Bill data from LegiScan, CC BY 4.0.
Loading committees…
SB0004 · 2026-02-27
Various fiscal matters. (House – Rules Suspended. Conference Committee Report 1)
SB0199 · 2026-02-27
Various education matters. (House – Rules Suspended. Conference Committee Report 1)
SB0176 · 2026-02-27
Shooting ranges. (House – Rules Suspended. Conference Committee Report 1)
HB1038 · 2026-02-27
Gaming matters. (House – Rules Suspended. Conference Committee Report 1)
HB1004 · 2026-02-27
Various education matters. (House – House concurred with Senate amendments)
SB0179 · 2026-02-27
Indiana department of transportation. (House – Rules Suspended. Conference Committee Report 1)
SB0140 · 2026-02-27
Public safety. (House – Rules Suspended. Conference Committee Report 1)
HB1368 · 2026-02-27
Carbon. (House – Rules Suspended. House concurred with Senate amendments)
SB0239 · 2026-02-27
Various education matters. (House – Rules Suspended. Conference Committee Report 1)
SB0185 · 2026-02-27
Alcohol and tobacco matters. (House – Rules Suspended. Conference Committee Report 1)
HB1343 · 2026-02-27
Public safety matters. (House – Conference Committee Report 1)
SB0204 · 2026-02-27
Various education matters. (House – Rules Suspended. Conference Committee Report 1)
HB1406 · 2026-02-27
Tax and fiscal matters. (House – Rules Suspended. Conference Committee Report 1)
SB0014 · 2026-02-27
Pension matters. (House – Conference Committee Report 1)
HB1268 · 2026-02-27
Indiana defense matters. (House – Rules Suspended. Conference Committee Report 1)
SB0256 · 2026-02-27
Foreign agent registration, foreign terrorist organizations, and foreign adversaries. (House – Conference Committee Report 1)
SB0071 · 2026-02-27
Various probate matters. (House – Conference Committee Report 1)
HB1003 · 2026-02-27
Boards and commissions. (House – Rules Suspended. Conference Committee Report 1)
HB1115 · 2026-02-27
Homeowners association governance. (House – Rules Suspended. Conference Committee Report 1)
HB1200 · 2026-02-27
Bureau of motor vehicles. (House – Conference Committee Report 1)
SB0271 · 2026-02-27
Telecommunications wire and valuable metal dealers. (House – Conference Committee Report 1)
SB0080 · 2026-02-27
Code publication. (House – Rules Suspended. Conference Committee Report 1)
HB1266 · 2026-02-27
Department of education and education matters. (House – Rules Suspended. Conference Committee Report 1)
SB0144 · 2026-02-27
Tobacco, e-liquid, and vapor devices. (House – Conference Committee Report 1)
HB1210 · 2026-02-27
Department of local government finance. (House – Conference Committee Report 1)
HB1249 · 2026-02-27
Various criminal law matters. (House – Rules Suspended. Conference Committee Report 1)
HB1277 · 2026-02-27
Health and human services matters. (House – Conference Committee Report 1)
HB1368 · 2026-02-27
Carbon. (House – Rules Suspended. Committee report, adopted)
HB1260 · 2026-02-26
Various insurance matters. (House – House concurred with Senate amendments)
HB1302 · 2026-02-26
Various labor and safety matters. (House – House concurred with Senate amendments)
HB1271 · 2026-02-26
Payment of health claims. (House – House concurred with Senate amendments)
HB1033 · 2026-02-26
Various judicial matters. (House – House concurred with Senate amendments)
HB1257 · 2026-02-26
Child services matters. (House – House concurred with Senate amendments)
HB1258 · 2026-02-26
Crimes of violence. (House – House concurred with Senate amendments)
HB1031 · 2026-02-26
County coroners. (House – House concurred with Senate amendments)
HB1193 · 2026-02-26
Civil rights commission. (House – House concurred with Senate amendments)
HB1184 · 2026-02-26
Towing matters. (House – House concurred with Senate amendments)
HB1192 · 2026-02-26
Seed laws. (House – House concurred with Senate amendments)
HB1052 · 2026-02-26
Various administrative law matters. (House – Conference Committee Report 1)
HB1408 · 2026-02-26
Education matters. (House – Conference Committee Report 1)
HB1368 · 2026-02-26
Carbon. (House – Concurrence defeated)
HB1424 · 2026-02-26
Farm and homestead food sales. (House – House concurred with Senate amendments)
HB1242 · 2026-02-25
Education reports. (House – House concurred with Senate amendments)
HB1250 · 2026-02-25
Public safety procedures. (House – House concurred with Senate amendments)
HB1155 · 2026-02-25
Traffic enforcement. (House – House concurred with Senate amendments)
HB1254 · 2026-02-25
Various dental matters; respiratory care. (House – House concurred with Senate amendments)
HB1273 · 2026-02-25
Requirements for proxy advisors. (House – House concurred with Senate amendments)
HB1042 · 2026-02-25
Regulation and investment of cryptocurrency. (House – House concurred with Senate amendments)
HB1152 · 2026-02-25
Homeowners association matters. (House – House concurred with Senate amendments)
HB1248 · 2026-02-25
Advanced DNA testing for cold cases. (House – House concurred with Senate amendments)
HB1098 · 2026-02-25
Work based learning liability. (House – House concurred with Senate amendments)
HB1357 · 2026-02-25
Child services provider background checks. (House – House concurred with Senate amendments)
HB1377 · 2026-02-25
Straight ticket voting. (House – House concurred with Senate amendments)
HB1360 · 2026-02-25
Access to public records. (House – House concurred with Senate amendments)
HB1342 · 2026-02-25
County commissioner districts. (House – House concurred with Senate amendments)
HB1303 · 2026-02-25
Sex crimes and child safety. (House – House concurred with Senate amendments)
HB1361 · 2026-02-25
Fertilizer. (House – House concurred with Senate amendments)
HB1348 · 2026-02-25
Regulation of grease control equipment. (House – House concurred with Senate amendments)
HB1286 · 2026-02-25
Military protective order. (House – House concurred with Senate amendments)
HB1092 · 2026-02-25
Child services matters. (House – House concurred with Senate amendments)
Complete voting record from LegiScan (showing the 60 most recent of 388 total roll-call votes this session).
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