RepublicanIn office since Nov 1992

Jean Leising

Indiana State Senator, District 42 since 1992. Next on the ballot in 2028.

Indiana State Senator, District 42

In office
34 yrs
Since 1992
Bills became law
19
35 sponsored, 2025–2026 session
Votes missed
0.1%
Chamber median 2.2%
With party
85%
On votes splitting the parties
Last margin
+45.8
Won 2016
Next election
2028
Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET

Committees

As of 2026-10.

  • Agriculture · chair
  • Agriculture and Natural Resources Interim Study · vice chair
  • Natural Resources · ranking republican member
  • State Fair Advisory · chair
  • Agricultural Promotion and Regulation Task Force
  • Commerce and Technology
  • Health and Provider Services
  • Utilities

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 35 sponsored · 19 became law
BillIntroCmteSenateHouseLaw
SB 164 Study of community or urban microfarming.
AGENCIES; Department of Agriculture (ISDA) · Became law Mar 2026
HB 1192 Seed laws.
ADVERTISEMENTS AND NOTICES · Became law Mar 2026
HB 1361 Fertilizer.
AGRICULTURE; Agricultural Commodities and Products · Became law Mar 2026
SB 230 Department of agriculture.
AGENCIES; Department of Agriculture (ISDA) · Became law Feb 2026
SB 56 Veterinary licensing.
AGENCIES; Professional Licensing Agency (PLA) · Became law Feb 2026

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where Leising sits in the Indiana State Senate

Leising is closer to the center than 80% of the chamber's Republicans.

Dem. medianRep. medianLeisingMore liberalMore conservative

Closest: Eric Bassler, Mike Young, Dan Dernulc

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:50 PM ET

With Leising’s party

  • Votes with the chamber's Republicans85%
  • Cosponsorships of the other party's bills37%

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: Leising’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

DateBillLeisingRep. majorityDem. majorityResult
Feb 27, 2026HB 1266: Department of education and education matters.YesYesNoPassed 28–19
Feb 26, 2026SB 285: Housing matters.NoYesNoPassed 28–22
Feb 26, 2026SB 27: Stadium authority.YesYesYesPassed 45–4
Feb 25, 2026SB 277: Indiana department of environmental management.YesYesNoPassed 26–21
Feb 24, 2026HB 1004: Various education matters.NoYesNoPassed 28–20

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time Leising 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.

YearRaceResultMargin
2024Indiana State Senate, District 42Won—
2020Indiana State Senate, District 42Won—
2016Indiana State Senate, District 42WonR+45.8
2012Indiana State Senate, District 42Won—
2008Indiana State Senate, District 42WonR+34.5
2000Indiana House of Representatives, District 68LostD+0.9
1998U.S. House, IN-9LostD+2.8
1996U.S. House, IN-9LostD+14.0
1994U.S. House, IN-9LostD+4.1
1992Indiana State Senate, District 42WonR+25.1

Source: 99chambers results archive

Seats Leising has held

Source: 99chambers results archive

Who Leising has run against

  • Randy A. Howard (D) · 2016 general, won
  • Warren F. Goodrich (D) · 2008 general, won
  • Robert J. Bischoff (D) · 2000 general, lost
  • Baron Hill (D) · 1998 general, lost
  • Lee H. Hamilton (D) · 1996 general, lost
  • Lee H. Hamilton (D) · 1994 general, lost

Source: 99chambers results archive

How we know Leising

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET