Jim Buck
Indiana State Senator, District 21 since 2010. Did not run for re-election in 2026; leaves office in January 2027.
- In office
- 16 yrs
- Since 2010
- Bills became law
- 9
- 27 sponsored, 2025–2026 session
- Votes missed
- 2.2%
- Chamber median 2.2%
- With party
- 96%
- On votes splitting the parties
- Last margin
- +27.9
- Won 2022
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET
Committees
As of 2026-10.
- Government Interim Study · vice chair
- Local Government · chair
- Environmental Affairs
- Homeland Security and Transportation
- Judiciary
- Public Safety and Military Affairs Interim Study
- Roads and Transportation Interim Study
- Rules and Legislative Procedure
- Veterans Affairs and The Military
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
BUSINESS ORGANIZATIONS AND ASSOCIATIONS; Charitable Organizations and Nonprofits · Became law Mar 2026
AGENCIES; Department of Local Government Finance (DLGF) · Became law Mar 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Buck sits in the Indiana State Senate
Buck is closer to the center than 49% of the chamber's Republicans.
Closest: Randy Maxwell, Justin Busch, Cyndi Carrasco
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:50 PM ET
With Buck’s party
- Votes with the chamber's Republicans96%
- Cosponsorships of the other party's bills33%
Black tick: the average of Republicans in the Indiana State Senate.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Buck’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Buck | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Feb 27, 2026 | HB 1266: Department of education and education matters. | Yes | Yes | No | Passed 28–19 |
| Feb 26, 2026 | SB 285: Housing matters. | No | Yes | No | Passed 28–22 |
| Feb 26, 2026 | SB 27: Stadium authority. | Yes | Yes | Yes | Passed 45–4 |
| Feb 25, 2026 | SB 277: Indiana department of environmental management. | Yes | Yes | No | Passed 26–21 |
| Feb 24, 2026 | HB 1004: Various education matters. | Yes | Yes | No | Passed 28–20 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Buck was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2022 | Indiana State Senate, District 21 | Won | R+27.9 |
| 2018 | Indiana State Senate, District 21 | Won | R+30.9 |
| 2014 | Indiana State Senate, District 21 | Won | — |
| 2010 | Indiana State Senate, District 21 | Won | R+37.2 |
| 2006 | Indiana House of Representatives, District 38 | Won | — |
| 2004 | Indiana House of Representatives, District 38 | Won | — |
| 2002 | Indiana House of Representatives, District 38 | Won | — |
| 2000 | Indiana House of Representatives, District 38 | Won | — |
| 1998 | Indiana House of Representatives, District 38 | Won | — |
| 1996 | Indiana House of Representatives, District 38 | Won | R+83.9 |
| 1994 | Indiana House of Representatives, District 38 | Won | — |
Source: 99chambers results archive
Seats Buck has held
- Indiana State Senate, District 21 · since 2010
- Indiana House of Representatives, District 38 · 1994–2008
Source: 99chambers results archive
Who Buck has run against
- Josh Lowry (D) · 2022 general, won
- Christina Fivecoate (D) · 2018 general, won
- Charles W. Sosbe Jr. (D) · 2010 general, won
- Joseph T. Gravagna (L) · 1996 general, won
Source: 99chambers results archive
How we know Buck
One person, matched across every source we use.
- Open States ocd-person/8c8f7869-329e-4063-ab55-30e4eca00529
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET