Barack Obama: “Every time North Korea has violated international resolution, it's resulted in further isolation.”

It was nevertheless important that we all play a part in assuring that our elected officials are accountable.

Every president here today, as different as we are, has tried our best to uphold the values that John McCain and Mitt Romney believed in no less than I did.

It fortifies you to say that, yes, this has been part of the journey that we’re on.

And there’s no reason to suggest that we can’t get through this one either.