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The Resolution.

Four N.M. tribes sue Kalshi, say sports markets violate tribal gaming compacts

The Pojoaque, Sandia and Isleta pueblos and the Mescalero Apache Tribe filed a federal lawsuit against Kalshi on Tuesday in New Mexico, alleging the CFTC-registered prediction-market platform enables illegal sports betting on tribal lands and violates their exclusive gaming rights under state-tribal compacts. The tribes seek civil penalties and a court order blocking Kalshi's sports-related markets within their jurisdictions. Kalshi, which began offering sports event contracts after a federal court ruling in its favor against the CFTC, defends its products as legal financial instruments rather than gambling.

 
Why this matters?
 

Kalshi must now defend against tribal sovereignty challenges in both New Mexico and Wisconsin while the CFTC simultaneously fights Ohio's jurisdictional claims on its behalf. Any adverse ruling on IGRA-protected tribal land exposure could force the platform to geoblock near reservation boundaries nationwide, just ahead of its planned fall sports expansion.

 
The bigger picture
 

Four tribal nations in New Mexico join the Ho-Chunk Nation in Wisconsin and Kentucky users in mounting parallel federal challenges to Kalshi's sports event contracts, with the CFTC now also defending the platform's federally regulated status against state-level pushback.

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CFTC exempts prediction markets from swap data reporting in no-action letter

 
Why this matters?
 

Kalshi and Polymarket US can now reduce compliance overhead on event contract reporting, freeing resources for the federal-preemption legal fight the CFTC is already co-litigating with them against Ohio and other state regulators.

 
The bigger picture
 

Brings the running tally of federal regulatory actions on prediction markets to four this week — CFTC no-action relief, amicus brief for Kalshi, suit against states, and the Senate trading ban — as Washington builds a unified federal front against state-level pushback from Ohio, Minnesota, Colorado, and Wisconsin.

 

Polymarket volume drops for first time in 8 months as Kalshi hits record

 
Why this matters?
 

Kalshi's three record-breaking events this month give it concrete leverage in license-expansion talks by proving regulated markets can repeatedly capture liquidity that previously flowed offshore. Polymarket's eight-month growth streak ending removes its main narrative for investors during Kalshi's $1 billion Series F fundraising window.

 
The bigger picture
 

Kalshi's record month marks its third milestone in under a week after the UFC 328 and PGA Championship volume records, cementing its reversal from near-parity with Polymarket into a sustained volume lead backed by $1 billion in fresh Series F capital.

 

Cathie Wood's ARK Invest jumps into Kalshi's $1B Series F at $22B valuation

 
Why this matters?
 

Kalshi's $22 billion valuation now ranks it behind only SpaceX in its peer group, giving the regulated prediction market platform the institutional credibility to court pension funds and insurance counterparties that have shied away from newer platforms like Polymarket.

 

Polymarket drops waitlist, goes live in US for select users

 
Why this matters?
 

A live US presence would mark a major shift for Polymarket, which has operated offshore and faces CFTC scrutiny. Selective rollout could signal a compliance pathway or partnership strategy that other crypto-native platforms may try to replicate.

 
The bigger picture
 

Polymarket joins Kalshi and Interactive Brokers in pushing live US prediction-market access, as crypto-native and traditional finance platforms race to capture retail traders ahead of the NFL season.

The Resolution.
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