Barack Obama: “As long as these weapons exist, the United States will maintain a safe, secure, and effective arsenal to deter any…”

When we choose, when we make that decision, I do believe – and there is evidence for this – that the world gets incrementally better, and that is a worthy goal and it’s worth fighting for.

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

The full weight of the federal government is being brought down on a law-abiding elected official because she has dared to criticize the president.

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.