Barack Obama: “Michelle and I extend our thanks to Senator Kohl for his years of service to our Nation.”

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.

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.

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.

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.