Barack Obama: “Keeping faith with those who serve must always be a core American value and a cornerstone of American patriotism.”

Use that hope to make a difference. Get involved.

And I will fight for that, even if I don’t always think it’s going to win.

If I had a blame pie for why politics is so polarised and why we're seeing a rise of populism in many places, it's because of that information that is going into our brains every day.

I think when we act on that basis, it doesn't always work out, but over time things do get better.