Mark
Messmer

Who they are, where they came from

Mark B. Messmer represents Indiana's 8th congressional district in the U.S. House of Representatives, having taken office on January 3, 2025. Before his election to Congress, he served in the Indiana Senate representing the 48th district from 2014 to 2024, including as majority leader of that chamber from 2018 to 2022. Prior to the Indiana Senate, he served three terms in the Indiana House of Representatives, representing the 63rd district from 2008 to 2014. He also served on the Holy Family School Board from 2001 to 2004, including as its president from 2003 to 2004.

What they’ve done lately

Bills they’ll vote on next

Bills that have cleared committee and are heading for a floor vote. See all upcoming votes →

Where the campaign funds come from

Messmer's receipts of $918,644 this cycle are led by a joint fundraising committee — MESSMER VICTORY FUND accounts for $316,192, or the bulk of the 34.7% PAC share — with individual contributions making up 22.8% and 42.1% coming from other sources. Among named PAC contributors beyond the JFC, top entries include American Crystal Sugar Company PAC, Allison Transmission Inc. PAC, and American Council of Engineering Companies (ACEC/PAC), each at $10,000. Top employer concentrations among individual donors include Koch Enterprises, Inc., Wabash Valley Produce, and Bose McKinney & Evans LLP. Outside independent expenditures totaled $2.0M supporting Messmer — led by RJC Victory Fund ($955K), Defend American Jobs ($504K), and America's First Freedoms, Inc. ($404K) — and $77,685 opposing him from American Leadership PAC.