Who will Trump publicly insult by July 31?

Platform comparison

Market context

Donald Trump is still openly making personal attacks in public, and that is the key driver behind any “will he insult X?” contract. In one recent rally appearance, he called Kamala Harris “mentally impaired” and said she should be “impeached and prosecuted”, showing that direct, personalised language remains part of his campaign-style rhetoric.[1]

A 30% crowd-implied chance is broadly consistent with Trump’s recent behaviour, but it is not especially high given how often he uses insults as a default attack line. Comparable markets on public figures tend to price in his routine volatility rather than a one-off outburst, so the main question is not whether he is willing to be insulting, but whether he has a clear incentive to single out the listed person before settlement. The low-to-mid range pricing also suggests traders are not assuming a specific trigger yet, only an ongoing baseline risk of a fresh attack.[1][3]

For traders, the most important catalysts are live rallies, press availabilities, social-media posts, and any appearance tied to campaign or White House messaging, because these are the settings where Trump most often delivers unscripted personal attacks. Recent reporting has also shown him combining insults with broader political escalation, including high-visibility events that can move these markets quickly if the target is mentioned on stage or in a post.[1][2] In contrast, quieter days or tightly controlled formal schedules tend to reduce the odds of a qualifying insult before the deadline.

Sources: 1 · 2 · 3

Methodology

We track Who will Trump publicly insult by July 31? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.