The two largest prediction markets face their biggest credibility test yet as election contracts draw heavy volume.

Senators are pushing the prediction market platforms over concerns that traders may be profiting from non-public information on election contracts.

Reporting details unusual trading patterns in election contracts, including in a Los Angeles race.

The forecaster's midterm model moved toward Democrats in both chambers days before the vote.

The platform is examining a late flurry of wagers on Netanyahu's election, adding to scrutiny of prediction market integrity.

Track record questions are resurfacing as markets again price tight races with apparent confidence.

Market-implied odds continued shifting toward Democrats as election day neared.

Several Senate contests tightened in the closing stretch of the 2026 campaign.

Market prices and polling averages measure different things, a gap analysts say confuses casual observers.

A roundup of congressional polling, seat forecasts and midterm predictions.

The prediction market operators expanded media partnerships as election coverage approached.

Traders strongly favored the Democratic candidate in the Texas Senate matchup.

Ohio races drew focus as market odds shifted on the Democratic Senate hopeful's chances.

The Brazilian result is being cited in debate over whether election markets mispriced the race.

Research suggests market odds are increasingly appearing in mainstream election forecast queries.

Market odds favor the incumbent in the Connecticut governor's race.

Market odds across Georgia's statewide contests.

Polling and market odds in the South Carolina Senate matchup.