A Fortune report published a week before the election found widespread evidence of wash-trading on Polymarket. "Polymarket's Terms of Use expressly prohibit market manipulation," a Polymarket spokesperson told Fortune in a statement.
https://fortune.com/crypto/2024/10/30/polymarket-trump-election-crypto-wash-trading-researchers/
It’s “grand political theater at its worst,” the source told The Post. “They could have asked his lawyer for any of these things. Instead, they staged a so-called raid so they can leak it to the media and use it for obvious political reasons.”
https://archive.ph/MqrTE