Barack Obama: “America simply cannot continue on this path. The need to drastically change our energy policy is no longer a debatable…”

A drift towards extremism was "not inevitable

Use that hope to make a difference. Get involved.

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”.

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.