The NFL submitted an amicus curiae brief to the Supreme Court on Thursday in support of state regulations over sports event contracts. The filing signals the league's position that states should retain authority to oversee these products rather than federal preemption.

Pennsylvania Attorney General Dave Sunday is joining a coalition of lawmakers nationwide opposing prediction markets, according to a report from WHTM. The article provides no further details on the coalition's specific actions, legal grounds, or which other states are involved.

New analysis found a major spike in Polymarket bets predicting the Iran War roughly one hour before Trump's strikes began. The timing of the trading surge has drawn scrutiny about whether market participants had advance knowledge of the military action.

A bipartisan coalition of 40 state attorneys general filed an amicus brief urging the Supreme Court to take up a case that would let states regulate prediction markets. The brief was filed in support of New Jersey.

Sen. Richard Blumenthal is demanding more specifics from FanDuel about its VIP bettor program and tells Front Office Sports he intends to extend scrutiny to DraftKings and prediction markets. The Connecticut Democrat's warning puts both traditional sportsbooks and event-contract platforms on notice as Congress examines high-value customer programs and their potential harms.

Kalshi's prediction market prices the Maine Senate race at 58% for Troy Jackson and 42% for Susan Collins. The market is live on the regulated prediction market platform.

Polymarket traders are pricing Marine Le Pen at 43% to win the French presidential race, according to data from the prediction market platform. The figure places her ahead of two right-wing candidates, including a former prime minister. The market is among the most actively traded on the platform, according to Catcher Predict monitoring. The pricing comes amid ongoing riots in France. Le Pen's implied probability has risen as unrest has spread.

A US lawmaker introduced legislation that would bar candidates from trading event contracts tied to their own electoral outcomes. The proposed ban covers contracts on whether a candidate wins, stays in a race, or achieves a comparable result. Republican House candidate Laurie was named in connection with the issue. The bill signals congressional concern about insider-advantage trading in political prediction markets as the midterms approach.

Kalshi traders have pushed Talarico's odds in the Texas Senate race to a new high of 66%. The move followed leaked audio in which Paxton vented about his lack of control over his own campaign.

Kalshi launched three transparency features for its 2026 midterm election contracts on October 6: Brier scores, low-volume tags, and real-time activity feeds. The move followed platform data showing traders were more active in local races than national contests. The features arrive as election trading volume grows on the CFTC-regulated platform, with the midterms weeks away. Kalshi framed the rollout as a response to observed user behavior rather than regulatory pressure.

Kalshi prediction-market traders are pricing a 64% probability that Democrats control the U.S. Senate with exactly 51 members, the bare minimum for a majority. The market includes Alaska in that scenario.

270toWin.com published an interactive map of 2026 U.S. House election prices drawn from Polymarket's US USD YES asking prices. The map uses a four-tier color scale: Tilt for 55 to under 65 cents, Leans for 65 to under 80 cents, Likely for 80 to under 90 cents, and Safe for 90 to 100 cents. The visualization translates prediction-market pricing into a familiar electoral-ratings format.

Ohio regulators have ordered 10 prediction market operators and brokers to cease offering sports event contracts to persons located in the state. The enforcement action targets platforms and intermediaries distributing sports contracts to Ohio residents. The order cites a DCM (Designated Contract Market) as among those offering the products.

Political forecasting site 270toWin has begun publishing live Polymarket odds for select 2026 Senate elections. The pages display current prediction market pricing for individual Senate races alongside the site's traditional forecasting tools. The integration represents a signaling partnership between an established political data publisher and a CFTC-registered exchange. No contract terms, revenue share, or exclusivity details were disclosed. A separate Reddit post in the FiveThirtyEight subreddit offered political opinion on Senate probabilities and diesel prices without market analysis.

Editorials in the Boulder Daily Camera and The Iola Register highlight what they describe as a strangely favorable Trump administration stance toward prediction markets. The Daily Camera notes the CFTC used emergency authority to direct Kalshi to continue offering event contracts after New York sought to halt the exchange. Both pieces frame this as an unusual policy position benefitting the regulated sector. The editorials were published October 1 and October 6, 2026.

DeFi Rate published a speculative analysis on what could happen if the US Supreme Court declines to review cases involving Kalshi. The piece examines potential effects on prediction-market operators, CFTC policy, state gambling laws, and congressional lobbying. No actual Supreme Court action is reported; the article is a hypothetical exploration of downstream consequences should the Court pass on review.

The International Association of Gaming Regulators (IAGR) and NAGRA filed an amicus brief asking the U.S. Supreme Court to review sports event contracts traded on exchanges registered with the Commodity Futures Trading Commission (CFTC). The brief asks the Court to resolve conflicting lower-court rulings on the issue.

Rep. Don Davis introduced legislation that would bar federal candidates and their families from trading prediction market contracts tied to their own elections. The bill targets a potential conflict of interest where office-seekers could profit from or manipulate markets reflecting their electoral chances. No vote timeline or co-sponsor count was disclosed.

Prediction market Kalshi is donating $3 million to Housing Works to expand New York healthcare. The donation comes as the platform faces a lawsuit from Gov. Kathy Hochul.

Ohio sent cease-and-desist notices to three firms including Kalshi, Robinhood, and Crypto.com, ordering them to stop offering or facilitating sports event contracts. The notices target prediction market platforms and related exchanges. The action marks an escalation in state-level enforcement against event contracts tied to sporting outcomes.