CNBC’s Jessica Ettinger discusses the scrutiny facing "mention markets," where users bet on specific words spoken by public figures. The segment highlights concerns about manipulation, citing a former Trump teleprompter operator who profited from inside knowledge. Calci, a major prediction market, recently removed sports-related mention markets due to these risks. Former CFTC commissioner Brian Quintens explains that such contracts are vulnerable to insider information, referencing past Super Bowl halftime show bets.