HIGHLAND, Ind. — U.S. Rep. Frank J. Mrvan, D-Highland, and Porter County Commissioner Barb Regnitz, R-Valparaiso, are set for a November general-election matchup in Indiana’s 1st Congressional District after clearing their May 5 primaries, putting Northwest Indiana’s only closely watched House race on a fall ballot already shaped by presidential endorsement politics and national party money.
Key facts
| Item | Detail |
|---|---|
| Mrvan (D) primary | ~80% Lake / ~74% Porter / ~85% LaPorte vs Sparks-Wade |
| Regnitz (R) primary | ~40% Lake / ~61% Porter; led Ruiz and Schenke |
| Regnitz self-funding | ~$1.5M personal loan (Times FEC summary) |
| Cook rating | “likely Democratic” (The Hill) |
| Trump endorsement | July Truth Social (Times) |
| Party infrastructure | NRCC MAGA Majority / DCCC Frontline (IndyStar) |
The Associated Press called both races by 9:15 p.m. on primary night, the Post-Tribune reported. Mrvan, seeking a fourth House term representing Lake, Porter, and northwest LaPorte counties, defeated former Gary parks director and councilwoman LaVetta Sparks-Wade. Regnitz outpaced Ben Ruiz of East Chicago and James Kent (Jim) Schenke. The Times of Northwest Indiana noted that a Porter County resident had been selected as the Republican nominee in the 1st District for only the second time this century. Campaign finance records summarized by The Times showed Regnitz personally loaning her congressional campaign about $1.5 million by the end of 2025 and still holding roughly $1.4 million in the bank at the end of March, compared with about $1.1 million cash on hand for Mrvan.
“It is my distinct honor to earn the Democratic nomination to continue serving the people of Indiana’s First Congressional District,” Mrvan said in a primary-night statement quoted by the Post-Tribune. He said he wants to remain co-chair of the Congressional Steel Caucus and to keep pressing economic-development and public-safety projects, including South Shore Line double-tracking.
Regnitz framed her bid as a correction after years of policies she said had “negatively impacted the American people,” promising prosperity, strong border policy, and smarter federal spending. “This district needs somebody that represents Hoosier values, not D.C. values,” she told the Post-Tribune. “I congratulate DC Frank Mrvan on his primary win tonight. And to DC Frank, I say, may the best woman win.”
The Hill reported that Decision Desk HQ treats the contest as one of Indiana’s few competitive House races this cycle, even as Cook Political Report rates it “likely Democratic.” President Trump lost the district to Joe Biden by roughly eight points in 2020 but narrowed the gap to less than a point against Kamala Harris in 2024, according to Cook data cited by The Hill.
National infrastructure arrived in midsummer. The Times reported July 14 that Trump endorsed Regnitz on Truth Social. Regnitz said she hopes to follow Trump’s example as a business background entering Washington. NRCC spokesperson Zach Bannon told The Times Regnitz has “built a record of delivering results” and, with Trump’s endorsement, is “poised to flip Indiana’s 1st District red this fall.” IndyStar separately reported the NRCC placed Regnitz in its MAGA Majority program while Democrats earlier added Mrvan to the DCCC Frontline roster.
On the stump, the Post-Tribune documented a sharp contrast over inflation and foreign policy. Mrvan argued Trump administration tariffs burden farmers and raise grocery costs and said ending “President Trump’s war in Iran as quickly as possible” is necessary to bring down gas and grocery prices. He said he would support a war-powers measure restoring Congress’s constitutional role. Regnitz said she would apply her financial-planner background to “promote smarter spending and root out waste and fraud,” argued the country has a spending problem rather than a tax-collection problem, and said war-powers debates belong “before or after a conflict,” while supporting “the men and women in harm’s way, our president and the goal of achieving an American victory.”
November 3 will test whether Regnitz’s Porter County base, Trump branding, and NRCC resources can overcome Mrvan’s steel-caucus incumbency in a district that still leans Democratic on paper.