Like most parents, I've been stumped by homework, the big questions, such as: 'What is the point of geography - the pilot always knows where we are going?'. Answer: 'If you didn't know any geography, people would think you were an American, and you wouldn't be able to put them right because you wouldn't know where they live.'
That's what I think is important to remember now and when you hear that slogan, "Make America great again." I think it's important that we remind everybody that America was never great in itself. It's been great in its aspirations.