Barack Obama: “We have a moral obligation to leave our children a planet that's not irrevocably polluted or damaged.”

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

The fact that any president, or any administration, is willing to engage in such transparent efforts to intimidate someone should outrage all Americans, regardless of how they feel about Congresswoman Omar’s political views.

A drift towards extremism was "not inevitable

People need to “rediscover what’s the story we tell about how we’re going to live together, and see each other, and recognise each other, and disagree, and yet, still care for each other”.