Barack Obama: “They taught me values straight from the Kansas heartland where they grew up.”

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.

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

It is a basic principle of American democracy that the government can’t selectively target individuals simply because of their political beliefs or what they say.

A drift towards extremism was "not inevitable