Kalshi, Polymarket and their founders have contributed at least $5 million to Republican and Democratic political groups during the current election cycle, Reuters reported on 22 October. Its account draws on campaign-finance records and a private remittance document reviewed by the news agency.[4]
Republican recipients received $2.7 million, with Democrats receiving the remainder. Reuters reported that just over a third of the combined spending went to state-level groups, citing the Center for Political Accountability. The total includes a $1 million Polymarket contribution to a Democratic nonprofit that does not disclose donors.[4]
The spending accompanies litigation over whether event contracts fall under federal derivatives oversight or state gambling rules. Political contributions do not establish the outcome of those cases or show that any particular official traded a decision for money.
Kalshi told Reuters that its complete election disclosures would show donations roughly balanced between the parties. Polymarket said it engages across the debate. Those responses help explain the companies’ positions; the published totals remain Reuters’ findings rather than an independent FX Brokers reconstruction of every underlying payment.[4]
Sources & further reading
- Polymarket and Kalshi expand political donations amid scrutiny Reuters · 22 Oct 2026 · Accessed 22 Oct 2026
- Kalshi leads prediction markets' lobbying effort against state regulation Yahoo Finance · 8 Oct 2026 · Accessed 22 Oct 2026
- Kalshi founder says state-regulation fight may reach Supreme Court New York Post · 21 Oct 2026 · Accessed 22 Oct 2026
- Polymarket, Kalshi expand political donations as firms face scrutiny Reuters via MarketScreener · Accessed 30 Oct 2026