There are lots of ways the election could go terribly wrong What happens if one side doesn’t concede? Not just Trump – the Democrats might well have reason to call foul too. What if the power grid goes out in a major city on Election Day, knocked out by terrorists or an unfriendly nation-state? What if voting machines are hacked, or strongly suspected of being hacked?

These are among the things law professor Rick Hasen considers in his book, ‘Election Meltdown.’

“There’s lots of ways that things could go south,” he says.