No, it's decided by electors, who will probably meet in December. Before then, we can expect shenanigans, and we don't have a constitutional president. After t

No, it's decided by electors, who will probably meet in December. Before then, we can expect shenanigans, and we don't have a constitutional president. After then, we do. We have an indirect democracy. Electors, in abstract, could vote to put the actor who plays Barney into the presidency. A few states have laws require electors to follow voters, but even there, electors can break laws. We have a pretty good idea of who the president will be after voting, but that's how and when it becomes official.