Barack Obama: “In the 21st Century, it's not enough to leave no child behind.”

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.

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

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 decision about how do we face and embrace this finite amount of time we have on the planet.