Kalshi just launched congressional control markets and Manifold is working on cash prize markets.

Resolves to the platform (Manifold or Kalshi) which first has markets with real money (USD) prizes on the winner of the next US presidential election.

(In case neither of them has it on the 2024 election, then it'll resolve to the first to have it on the 2028 election or later. This market does not have a deadline.)

The criteria for cash prizes is defined following https://manifold.markets/jack/will-manifold-launch-real-money-pri

Other platforms do not matter for this question.