Trump out as President by June 30?

Platform comparison

Market context

Donald Trump remains in office with no credible mechanism for resignation or removal before June 30, 2026, as the current crowd-implied probability sits at 0% for “Yes” on Polymarket[2]. This starkly contrasts with Kalshi, where the implied probability for his impeachment and removal in his second term has risen to nearly 28.7% as of Monday, reflecting divergent market signals on the same underlying risk[3]. While Polymarket trades in implied probability without KYC and charges minimal fees, Kalshi requires identity verification and uses decimal odds, creating a structural gap in how traders interpret the same political volatility.

Historically, no US president has been removed before the end of their term except through resignation (Nixon did not resign; Ford pardoned Nixon) or death; Trump’s own first term ended with him still in office despite two impeachments that never led to removal[7]. The 25th Amendment’s temporary invocation has never resulted in permanent removal, and the market definition excludes temporary invocations, further anchoring the 0% probability[2]. Traders should watch the 2026 midterm election outcome, as Trump himself warned Republicans that losing control of Congress would trigger impeachment efforts[4]. A recent NBC News report confirms he issued this warning at a House Republican retreat, making the midterms the primary catalyst for any future removal scenario[4].

The settlement window ends 2026-06-30, but the midterms occur in November 2026, meaning any impeachment process would begin after this market’s resolution date[4]. Thus, even if Democrats win the House, the timeline precludes removal before June 30, 2026. Polymarket’s 0% reflects this temporal impossibility, while Kalshi’s 28.7% likely captures longer-term risk beyond this market’s window[3]. Fee structures and KYC requirements further explain why these books diverge: Polymarket’s open access attracts speculative traders, whereas Kalshi’s regulated environment may price in institutional risk assessments over extended horizons[2][3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Trump out as President by June 30? 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

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

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.