Barack Obama: “We will go together, reaffirming that alliance between the United States and the Republic of Korea is unbreakable.”

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.

People need to “rediscover what’s the story we tell about how we’re going to live together, and see each other, and recognise each other, and disagree, and yet, still care for each other”.

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

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