Polymarket is, at least for tariffs [1].
[1] https://polymarket.com/event/will-the-supreme-court-rule-in-...
> if you look closely, you can see DUMFUQ Sucks-His-Balls BUYING HIGH, then SELLING LOW! Dumfuq SUCKS-HIS-BALLS must have confused this for a Ceasefire market to trade like shit!
While there is legitimate concern around manipulation given Polymarket's thin volumes [1], there is limited evidence that the broader value of prediction markets applies to them [2]. (I started taking it seriously after Nate Silver hitched up his wagon [3].)
I'm sceptical of political predictions. I have limited respect for crypto. But on the balance, once you account for manipulation risk, it has a good track record. More pointedly to OP's question, I don't see any controversy around its adjudication and ability to pay.
[1] https://insights.som.yale.edu/insights/dont-trust-the-politi...
[2] https://www.uc.edu/news/articles/2024/12/election-results-sh...