RepublicanIn office since Nov 2016

Mark Lofgren

Iowa State Senator, District 48 since 2016. Next on the ballot in 2028.

Iowa State Senator, District 48

In office
9 yrs
Since 2016
Bills became law
2
55 sponsored, 2025–2026 session
Votes missed
7.5%
Chamber median 2.9%
With party
91%
On votes splitting the parties
Last margin
+31.5
Won 2024
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.

  • Health and Human Services
  • Judiciary
  • Local Government
  • Public Retirement Systems
  • Transportation
  • Workforce

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

Legislation

2025–2026 session · 55 sponsored · 2 became law
BillIntroCmteSenateHouseLaw
SF 22 A bill for an act relating to the use of an electronic device in a voice-activated or hands-free mode while…
cellular phones · Became law Apr 2025
SF 42 A bill for an act modifying the costs eligible for emergency medical services fund expenditures, and…
emergency medical care · Became law Mar 2025

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

Voting record

2025–2026 session · placement by roll-call votes

Where Lofgren sits in the Iowa State Senate

Lofgren is closer to the center than 91% of the chamber's Republicans.

Dem. medianRep. medianLofgrenMore liberalMore conservative

Closest: Doug Campbell, Jeff Taylor, Dave Sires

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:49 PM ET

With Lofgren’s party

  • Votes with the chamber's Republicans91%

Black tick: the average of Republicans in the Iowa State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Lofgren’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

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

Career

Offices held, and every time Lofgren 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
2024Iowa State Senate, District 48WonR+31.5
2020Iowa State Senate, District 46WonR+18.7
2016Iowa State Senate, District 46WonR+13.6
2012Iowa House of Representatives, District 91WonR+6.6
2010Iowa House of Representatives, District 80WonR+15.2

Source: 99chambers results archive

Seats Lofgren has held

Source: 99chambers results archive

Who Lofgren has run against

  • John Dabeet (D) · 2024 general, won
  • Chris Brase (D) · 2020 general, won
  • Chris Brase (D) · 2016 general, won
  • John Dabeet (D) · 2012 general, won
  • Nathan K. Reichert (D) · 2010 general, won

Source: 99chambers results archive

How we know Lofgren

One person, matched across every source we use.

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