With billions at stake, the Sunshine State will decide whether to legalize adult-use marijuana in November. But the ballot measure has powerful enemies—including Governor DeSantis and a hedge fund billionaire. Here’s who could tip the scales either way.

This November, when voters decide who will become the next president of the United States, Floridians will also have the chance to vote on whether to legalize adult-use cannabis. If the Sunshine Stat…