All of these "politican out" markets will resolve to true if the politician dies: https://polymarket.com/predictions/out.
The language is usually "This market will resolve to “Yes” if <politician> ceases to be <Prime Minister/President/whatever>".
Or for another example: https://polymarket.com/event/will-neymar-play-in-the-2026-fi.... Will Neymar play in the world cup? Not if he's dead. Any kind of "will celebrity appear in X in the future" can be reduced to an assassination market.
Kalshi supposedly does not pay out if a death is involved
https://xcancel.com/mansourtarek_/status/2029996077554815268
Not sure if Polymarket does the same. Also not sure if I really trust these people to be the arbiter of morality and adhere to their own rules when it doesn't benefit them.
I can't find any evidence that Polymarket has a rule like this, and they have paid out for assassinations in the past: https://polymarket.com/event/khamenei-out-as-supreme-leader-....
Yeah, Kalshi can't pay. 17 CFR § 40.11
> A registered entity shall not list for trading or accept for clearing on or through the registered entity any of the following:
> (1) An agreement, contract, transaction, or swap based upon an excluded commodity, as defined in Section 1a(19)(iv) of the Act, that *involves*, relates to, or references terrorism, *assassination*, war, gaming, or an activity that is unlawful under any State or Federal law.
Polymarket doesn't seem to care too much.