Domer is a pseudonymous professional political bettor and prediction market trader who has operated full-time since 2018. Domer's Twitter Score is 191 out of 1000 (an Excellent rating) as of October 2026, ranking #2,503 (top 1%) among 494,276 tracked accounts.
Domer is among the most prominent traders on Polymarket, where he appears on the leaderboard under the handle "JustKen" and has wagered over $400 million with nearly $3 million in profit in recent periods. He is also active on Kalshi, with combined profits across both platforms reported at nearly $4 million. Before focusing on political prediction markets, Domer was a professional poker player.
Domer gained mainstream attention after being featured on 60 Minutes and covered by Bloomberg for his prediction market activity, including a notable successful bet on the JD Vance vice-presidential pick. His account has generated 3,276 posts and has been mentioned by 66 accounts a total of 110 times.
Who follows Domer on X?
The accounts that follow Domer include 523 founders, 161 angel investors, 344 influencers and 3 VCs, among them Cobie, Ansem, Laura Shin, Matt Huang, Andrew Kang and Threadguy.