Concerns Rise Over Prediction Markets and Election Poll Manipulation

Election officials are warning about the potential for prediction markets like Kalshi and Polymarket to be manipulated by fake polling results in the U.S. This practice, reportedly aimed at influencing public opinion for financial gain, raises concerns regarding the integrity of electoral democracy.

What Happened

In late July, top election officials convened a webinar to address the risks posed by prediction markets, specifically highlighting Kalshi and Polymarket. According to Livemint, these platforms are susceptible to manipulation by actors seeking to influence public opinion and generate profit through deceptive means. Dean Logan, Los Angeles County clerk, noted that election administration is significantly affected by perception and misinformation, requiring officials to be prepared to respond.

An entity identified as Median Strategies reportedly conducted an “experiment” involving the release of fake poll numbers. While Median Strategies denied that the experiment was for financial gain or to influence prediction markets, these actions have contributed to concerns about undermining public trust in the democratic process (Livemint). The impact of these fake polls varied; two initial “polls” concerning races in Nevada and Wisconsin had a modest impact, with the Wisconsin poll largely ignored, according to the Milwaukee Journal Sentinel (Livemint).

A third “poll” by Median Strategies, focusing on the Los Angeles mayoral race between Karen Bass and Nithya Raman, reportedly had the most significant impact (Livemint). This was attributed to a scarcity of other polling data in what is anticipated to be a close general election contest. The purported findings, claiming Bass was in the lead and gaining support from voters who had backed Republican Spencer Pratt, spread rapidly across social media and were reported by the California Post (Livemint).

Key Details

• Prediction markets like Kalshi and Polymarket are identified as platforms potentially vulnerable to manipulation by fake polling data, according to Livemint.
• Median Strategies reportedly released three “fake polls,” with the one concerning the Los Angeles mayoral race having the most impact due to limited existing polling data, as stated by Livemint.
• After the release of the phony polling data for the Los Angeles mayoral race, Karen Bass’s odds of winning reportedly improved, though Median Strategies claimed no financial benefit, according to Livemint.
• An NBC News analysis found that users of Kalshi and Polymarket have generated approximately $200 million in trades on midterm election outcomes, Livemint reported.
• A poll commissioned by the Partnership for Large Election Jurisdictions found that 39% of likely midterm voters would have less confidence if official election results differed from prediction market odds, Livemint stated.

Why It Matters

The alleged use of fake polling results to influence prediction markets raises significant questions about electoral integrity and public trust. According to Livemint, this practice comes at a time when there are existing efforts to undermine confidence in democratic processes. A Gallup poll found that 67% of Americans are concerned about election officials being pressured to alter outcomes, and 57% fear improper ballot counting (Livemint). The introduction of fabricated polls further compounds these anxieties.

The incident involving Median Strategies, even with their denial of financial gain, underscores the potential for manipulation (Livemint). The increased activity on prediction markets, with reported trades of approximately $200 million on midterm election outcomes on platforms like Kalshi and Polymarket, highlights the financial incentives involved, according to an NBC News analysis cited by Livemint. Election officials, such as Dean Logan, are concerned that if one entity can engage in such practices, others may follow suit, posing a threat to the electoral process, as reported by Livemint.

Furthermore, Livemint reports that prediction markets are gaining traction partly due to a growing distrust in traditional polling, which has experienced failures in recent years. While Kalshi and Polymarket assert their odds reflect the “wisdom of crowds,” a significant portion of the public, 39% of likely midterm voters, reportedly would have less confidence in election outcomes if they differed from prediction market odds, according to a poll by the Partnership for Large Election Jurisdictions (Livemint). Many surveyed could not correctly interpret what these odds represent, often confusing them with vote counts (Livemint). Logan emphasized to Wired that many people do not distinguish between market reflections of participant views and the official election process, a challenge for election administrators (Livemint).

What’s Next

According to Livemint, Median Strategies has reportedly ceased operations after being confronted by a reporter. However, the report indicates uncertainty about future preparedness for similar incidents from other undisclosed polling companies. Election officials continue to prepare for the potential for prediction markets to sow chaos, as indicated by Wired (Livemint).

Originally reported by Livemint·Published 21 Aug 2026, 08:51