Polymarket, a prediction market platform, faces backlash after a $7 million market manipulation scandal. The market involved a purported deal between the U.S. and Ukraine, but resolved erroneously, leading to user losses.

Allegations suggest insider manipulation by UMA whales, who concentrated voting power to influence outcomes. This raised concerns over Polymarket's integrity and prior accusations of insider dealings.

Polymarket's attempt to address user concerns fell short, stating they wouldn't issue refunds. Critics and insiders continue to spotlight manipulation issues within the platform, pointing to systemic flaws in UMA's resolution system.