It's probably a prerequisite for the job, or at least you have to have enough craziness to think that you can do the job. I think that [Donald Trump] has not spent a lot of time sweating the details of, you know, all the policies.

I said this right after the election - we have to remind ourselves we're on the same team. Vladimir Putin's not on our team.

My parents shared not only an improbable love, they shared an abiding faith in the possibilities of this nation. They would give me an African name, Barack, or blessed, believing that in a tolerant America your name is no barrier to success.

When you take on the position of president, you are committing yourself to, first and foremost, protecting the American people. You are accepting an institutional role that requires you to make hard decisions and hard choices, and as a consequence you have to take your moral sense and not put it aside.

The problem is that young people are less likely to vote than older people. What results is a situation in which sometimes the elections don't fully reflect the views of the American population.

The nation that leads the clean energy economy will be the nation that leads the global economy.

[Two of the most unpopular presidential candidates selected by the two parties in history] indicates that there is a lot of cynicism out there. It indicates that the corrosive nature of everything from talk radio to fake news to negative advertising has made people lack confidence in a lot of our existing institutions.