Barack Obama: “This important not just to the United States, but it's important to the world.”

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.

A drift towards extremism was "not inevitable

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”.