Domer was a full-time poker player. He put a few dollars on the Knicks just to make a game more fun, and a few clicks later found out you could trade on almost anything: politics, movies, elections.
He's been trading politics full time since 2007. In November 2025, Kalshi named him its most profitable public politics trader, with $1.2 million in profit on the exchange. A year later, his public Kalshi profile shows a return of more than $2.39 million.
“Success in prediction markets isn't about luck. It's about extreme curiosity, relentless research and creativity in finding edge.”
The trade he's known for
Kalshi tells it like this. During a vice-presidential pick, Domer and a friend tried to get ahead of the news. The announcement was set for a tiny Midwestern town with almost no flights, so they opened flight trackers and called candidates' teams until they spotted a plane from Alaska heading there. They read it as Sarah Palin, and went all in before the news broke.
His advice
“Scroll through markets and try to find something you might have an edge in.”
WHAT TO TAKE FROM IT
Domer's edge was never a system, it was homework: knowing a niche well enough to see news coming. Start with markets on things you already follow closely.
Look around Kalshi yourself
A CFTC-regulated US exchange for event contracts on the Fed, inflation, earnings and more.
Who can use it: Kalshi serves US traders and many other countries. Its member agreement lists where it doesn't operate, and it checks your location when you sign up.
mrkts earns a referral reward if you sign up and trade. Not available everywhere; our link checks your region.
The risks
- One trader's result says nothing about what you'll make. Most people who trade these markets don't end up ahead.
- Trading on news before it breaks is a race against people with better information. You'll often be the one who's late.
- Election and political markets can swing hard on a single headline.
Sources (3)
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We report what traders did from public sources, listed above. It isn't a tip to copy any trade, and nothing here is investment advice. See our disclosures.