Who will Trump publicly insult by May 31?

Platform comparison

Active sub-markets

Market context

Donald Trump's propensity for public criticism—whether directed at political opponents, media figures, or former allies—forms the basis of this market's assessment. The question hinges on whether he will make a clearly insulting or mocking statement about a specific individual between now and 31 May 2026. The 10% implied probability reflects scepticism that such a statement will occur, despite Trump's documented history of personal attacks across social media, rallies, and interviews. Kalshi's decimal odds representation (approximately 1.11 for the YES side) contrasts with Polymarket's percentage display, though both platforms' fee structures—Kalshi charging 2% on winning positions versus Polymarket's variable taker fees—affect the effective probability traders should demand.

Historical precedent suggests the low probability warrants scrutiny. Between 2015 and 2021, Trump issued thousands of insulting public statements targeting individuals by name or nickname. Even during periods of relative restraint, he has resumed such rhetoric when provoked or when political circumstances shifted. The resolution criteria's breadth—encompassing nicknames, claims of weakness or disloyalty, and professional attacks—captures behaviour Trump has demonstrated repeatedly. Betfair and Smarkets, which offer deeper liquidity on political markets, may price this differently based on their user bases' assessments of Trump's behavioural baseline.

Key catalysts include Trump's campaign schedule, media appearances, and responses to legislative or legal developments. His engagement with social platforms and traditional news cycles will directly influence the likelihood of public statements. Recent reporting from Reuters and AP News has documented his continued criticism of political figures, suggesting the underlying behaviour remains active. Traders should monitor whether Trump faces significant political opposition or legal challenges that historically correlate with increased public commentary.

Methodology

This page compares Who will Trump publicly insult by May 31? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Kalshi Alternative UK routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Kalshi Alternative UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What does it cost to trade on Kalshi Alternative UK?

Zero. Kalshi Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.