"Daddy, I'm kind of scared."
"Why, honey?"
"People on the TV are saying mean things about other people. They are saying that they have done a lot of bad things and that they have dangerous ideas."
"Oh, don't worry, honey. Those are just ads for political candidates. They won't be on the TV after the election."
"What's an election?"
"That's where we vote to decide which candidate we want to win."
"But if they have done bad things and have dangerous ideas, how do you choose between them?"
"Well, they belong to different parties ,and the parties disagree about how to do things."