IA-01 House winner?
1dChristina Bohannan fell from 32% to 32% while Mariannette Miller-Meeks rose from 32% to 32%, a meaningful one-day swing in a toss-up House race that traders should monitor for follow-through.

Incumbent Republican candidate for U.S. House in Iowa
General Election
Voters choose the office holder.
Current prediction-market probability for the candidate, updated as market prices change.
Mariannette Miller-Meeks is trading at 33% to win the IA-01 House winner? on prediction markets.
Key details about the candidate’s background, party, office sought and current campaign.
Current roleU.S. Representative
PartyRepublican
Political ideologyConservative Republican
Age71 years old (Sep 6, 1955)
GenderFemale
LocationIowa
BackgroundPhysician (ophthalmologist)
EducationSan Antonio Junior College (attended)
Notable personal detailsMariannette Jane Miller-Meeks is a Republican member of the U.S. House representing Iowa’s 1st Congressional District (first elected in 2020; in office since January 3, 2021). She is a physician (ophthalmologist) and a U.S. Army veteran, with prior public service including Director of the Iowa Department of Public Health and service in the Iowa State Senate. She earned nursing and graduate degrees before completing her M.D. at the University of Texas Health Science Center at San Antonio.
Supports tax relief for seniors, small businesses, and energy-related tax credits while backing Republican budget measures that reduce spending and enable tax cuts. Emphasizes lowering costs for families and businesses through targeted tax deductions and permanent small-business tax provisions.
Supports market-based reforms to lower costs and expand choices (association health plans, defined-contribution/CHOICE arrangements, PBM transparency) while opposing single-payer/Medicare-for-All and emphasizing preserving the doctor–patient relationship. Has backed legislation to lower premiums, increase insurance options, and supported measures to protect Medicare benefits such as coverage for cancer screening while expressing interest in identifying savings that avoid significant harm to Medicaid, including work requirement discussions.
Supports enforcement-first border policies including finishing border wall construction, expanding Border Patrol personnel and resources, stricter screening and limits on asylum-related policies, and other measures to reduce illegal crossings and deport criminal noncitizens. Has voted for and cosponsored legislation increasing border enforcement and voted to impeach the DHS secretary over border management.
Mariannette Miller-Meeks describes herself as pro-life while stating she supports exceptions for rape, incest, and to protect the life of the mother. She has previously cosponsored the 2021 Life at Conception Act but more recently has said abortion policy should be left to the states and has indicated support for a federal 15-week ban as a potential compromise.
Supports an "all-of-the-above" energy approach that emphasizes abundant, affordable, and reliable domestic energy production, market-based innovation, and streamlined permitting while opposing aggressive regulatory actions that would take existing fossil-fuel plants offline. Chairs the House Conservative Climate Caucus and backs policies to promote domestic energy production, critical mineral supply chains, nuclear and advanced technologies along with renewable deployment where appropriate. Voting record and environmental scorecards show frequent votes against stronger EPA and climate-related/
Supports strong protection of Second Amendment rights, opposes bans on commonly owned semi-automatic firearms and federal limits on private transfers, and backs concealed-carry reciprocity and policies favoring law enforcement. Advocates gun-safety measures such as safe storage and training while opposing broad new federal gun-control mandates.
Recent changes in prediction-market odds, polling and campaign status.
Christina Bohannan fell from 32% to 32% while Mariannette Miller-Meeks rose from 32% to 32%, a meaningful one-day swing in a toss-up House race that traders should monitor for follow-through.
Mariannette Miller-Meeks's odds in "IA-01 House winner?" are now 40%, above the prior high of 35%.
Mariannette Miller-Meeks has secured the Republican nomination in Iowa’s 1st Congressional District and will face Democrat Christina Bohannan again in the general election. The race is being treated as highly competitive, with both parties expected to spend heavily and outside groups already targeting the seat. More recently, advocacy groups have launched campaign efforts to support her, while Planned Parenthood has named her as one of its Republican targets.
Recent polling results and the candidate's current average in the race.
Mariannette Miller-Meeks currently averages 37.0%, ranking second in this race, 4.5 points behind the next candidate.
Average recalculated from polls through Jul 13 - 16.


Aggregation source: FiftyPlusOne
Campaign finance totals from the latest available reporting period.
2022
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LatestCycle 2022
Cycle 2024
Cycle 2026
Source: FEC
New updates coming soon
We're monitoring and will update when new data impacts the race.