# Bipartisan pair of Senators press Kalshi, Polymarket over election markets

- URL: https://talkfuse.com/story/bipartisan-pair-of-senators-press-kalshi-polymarket-over-election-markets/
- Published: 2026-10-29T20:44:42+00:00
- Updated: 2026-11-04T00:33:25+00:00
- Original publisher: The Hill (publisher lean: Centre)
- Original article: https://thehill.com/policy/technology/6182500-senators-press-kalshi-polymarket/
- Topics: Americas, Art, Business, Culture, Elections, Geopolitics, Markets, Politics, World

## Key points

- Two senators want answers on safeguards for election markets.
- Their letter cites candidate trading and suspected artificial volume.
- Kalshi and Polymarket were asked to respond by 3 November.

## Summary

US senators Elizabeth Warren, a Democrat, and John Curtis, a Republican, have asked Kalshi and Polymarket to explain how they protect markets tied to the November 2026 midterm elections. In a letter dated 28 October, they sought details of safeguards against insider trading, the use of confidential campaign information and market manipulation. They also questioned whether published market odds could affect voters’ understanding of a race, and asked the companies to respond by 3 November, election day.

The senators pointed to candidates who had traded on their own races on Kalshi and to reported trading patterns on Polymarket that researchers said could indicate artificial volume. Those examples raise concerns, but do not establish how widespread misconduct is. Warren and Curtis asked how the platforms screen people with privileged information, detect trading through other accounts, investigate suspicious activity and refer cases to regulators. They also requested evidence that the companies’ surveillance systems have been independently assessed.

## Coverage

- [The Hill: Bipartisan pair of Senators press Kalshi, Polymarket over election markets](https://thehill.com/policy/technology/6182500-senators-press-kalshi-polymarket/)
- [US Senators John Curtis and Elizabeth Warren: Letter to Kalshi and Polymarket on election-related prediction markets](https://aboutblaw.com/bnfX)

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.