Prediction markets / Midterms / Control of Congress

Iowa Republican Senate nominee in 2028

Pat Grassley12¢
Chuck Grassley0¢
Kari Lake0¢
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1D
1W
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Timeline

Trading hours
24 hours a day, except Thursday 3AM-5AM ET
Event day
June 6, 2028
Contract resolves
Determines the outcome of the contract
Payout
Usually within 1 hour of event resolution

About

Who will win the nomination for the Republican Party to contest the 2026 Senate Iowa Senate seat? Get $1 for every contract you own if your prediction is correct. Or close your position before the event resolves. Additional fees apply. Read the full contract terms and conditions

Trading prohibitions

  • Holders of federal and statewide public office.
  • Paid campaign staffers on Senate campaigns.
  • Anyone working in a vote-tallying capacity, or who has the potential ability to observe official vote counts before they are public.
  • Third-party vendors and contractors (and employees thereof) of Senatorial campaigns.
  • Paid employees of Democratic and Republican Party organizations, such as the Democratic Congressional Campaign Committee or the Republican National Committee.
  • Paid employees of Political Action Committees (PACs) and "Super PACs" (independent expenditure only political committees).
  • Paid employees of major polling organizations. This prohibition does not apply to all employees of an organization that contains a polling division (e.g. the prohibition does not apply to all employees of Quinnipiac University despite the presence of Quinnipiac University’s polling division). The Exchange shall determine which polling organizations constitute "major" and may modify that determination at any time, and will post publicly a list of those organizations on its website.
  • Employees of Decision Desks at major media organizations (including, but not necessarily exclusive to, Fox News, ABC News, AP, CNN, CBS News, Decision Desk HQ and NBC News). The Exchange shall determine which media organizations constitute "major" and may modify that determination at any time, and will post publicly a list of those organizations on its website.
  • All staff of the U.S. House of Representatives and its members.
  • All staff of the U.S. Senate and its members.
  • All staff of the Office of the President of the United States
  • All staff of the Office of the Vice President of the United States
  • All staff of the U.S. Supreme Court and its Justices

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