Senate Unanimously Bans Members and Staff From Trading on Prediction Markets
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Senate Unanimously Bans Members and Staff From Trading on Prediction Markets

The US Senate voted unanimously to prohibit senators and their staff from trading on political prediction market platforms including Polymarket and Kalshi. The measure, authored by Republican Senator Bernie Moreno, reflects growing concern over conflicts of interest in real-money forecasting platforms.

May 3, 2026, 03:28 AM1 min read

Key Takeaways

  • 1## Unanimous Vote on Trading Restrictions The Senate passed a resolution with unanimous support that bars all senators and congressional staff from placing bets on political prediction market platforms.
  • 2The measure targets exchanges including Polymarket and Kalshi, which allow users to wager on election outcomes and legislative events.
  • 3The resolution applies to all members regardless of party affiliation and extends to employees of individual offices.
  • 4## Conflict-of-Interest Framework Senator Bernie Moreno, a Republican, authored the resolution and has separately introduced the CLARITY Act with an end-of-May target date.
  • 5The timing reflects heightened scrutiny of prediction markets as they have grown in prominence and liquidity during the 2024 election cycle.

Unanimous Vote on Trading Restrictions

The Senate passed a resolution with unanimous support that bars all senators and congressional staff from placing bets on political prediction market platforms. The measure targets exchanges including Polymarket and Kalshi, which allow users to wager on election outcomes and legislative events. The resolution applies to all members regardless of party affiliation and extends to employees of individual offices.

Conflict-of-Interest Framework

Senator Bernie Moreno, a Republican, authored the resolution and has separately introduced the CLARITY Act with an end-of-May target date. The timing reflects heightened scrutiny of prediction markets as they have grown in prominence and liquidity during the 2024 election cycle. Lawmakers have expressed concern that trading positions could create financial incentives misaligned with legislative duties or could constitute a form of insider trading based on advance knowledge of votes or statements.

Why It Matters

For Traders

Prediction market platforms face potential restrictions on US political participants; volume and user base clarity from US congressional sources could face headwinds.

For Investors

The move signals regulatory momentum toward stricter oversight of prediction markets; platforms may face broader disclosure or licensing requirements as legislative proposals advance.

For Builders

Prediction market platforms must prepare compliance and KYC tools to enforce congressional trading bans and similar restrictions that may follow from the CLARITY Act.

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