In betting markets, the upper it prices to vote in favor of a given final result, the extra possible that final result is taken into account. On Polymarket, it at the moment prices 71 cents to guess in favor of a second Trump nomination and 32 cents to guess in opposition to. In sensible phrases, what this implies is that if Trump wins the nomination, those that guess in his favor are set to earn $1 for each 71 cents they guess. If he loses, they get nothing.