The Electric: A Bet on Hybrid Fighter Aircraft and a Friendship With Trump

Electric air-taxi startups, with their billions of dollars of development costs, have seemed like a long shot: In the next year or two, regulators will likely certify one or more of the startups to carry passengers, but no one knows how many people will want to fly in them, or whether they will be willing to pay enough and use them often enough to make the companies profitable.