Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Market context
Todd Blanche, a former federal prosecutor and defence attorney who represented Donald Trump during his New York criminal trial, was nominated as Attorney General following Trump's 2024 election victory. The prediction market in question asks whether Blanche's nomination will be publicly withdrawn by the end of August 2026—a window that covers the Senate confirmation process and the first months of a potential Trump administration.
Historical precedent suggests AG nominations rarely collapse after formal submission to the Senate. Of recent withdrawals, Loretta Lynch faced significant delays but ultimately confirmed in 2015; Jeff Sessions and Merrick Garland both advanced to confirmation votes without withdrawal. The 0% implied probability across Polymarket and Kalshi reflects the structural rarity of post-nomination reversals, though Blanche's dual role as Trump's personal counsel creates atypical conflict-of-interest scrutiny. Traders comparing decimal odds (Betfair and Smarkets typically quote 1.01 or lower for near-certain "No" outcomes) against Polymarket's binary pricing should note that even minor withdrawal risk gets compressed into negligible probability spreads when baseline expectations are this low.
Catalysts to monitor include Senate Judiciary Committee hearings, any ethics office determinations regarding Blanche's prior Trump representation, and statements from Republican senators on confirmation viability. The Federal Register and Senate Judiciary Committee calendar will signal timing; as of early 2025, no formal hearing date has been announced. Fee structures vary materially—Kalshi charges flat maker/taker fees whilst Betfair uses commission on net winnings—making position sizing on low-probability outcomes sensitive to platform choice.
Methodology
This page compares Todd Blanche nomination withdrawn by August 31? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
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