Barack Obama: “America, it is time to focus on nation-building here at home.”

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

The effort, he said, “should outrage all Americans, regardless of how they feel about Congresswoman Omar’s political views.”

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.

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