Well, after the fact it's realized the person whose name is on the ballot had been dead for months, and you didn't catch who cast the vote because you don't kno

Well, after the fact it's realized the person whose name is on the ballot had been dead for months, and you didn't catch who cast the vote because you don't know who they are. Or a million other scenarios. Really all it takes is stopping to think about it for more than a minute.