One of the things that I am concerned about is the degree to which we've seen a lot of commentary lately where there were, there are Republicans or pundits or cable commentators who seemed to have more confidence in Vladimir Putin than fellow Americans because those fellow Americans were Democrats. That cannot be.

Any so-called leader who does not take this issue (climate change) seriously or treats it like a joke is not fit to lead

I think one of the tragedies of the civil rights movement was because the civil rights movement became so court-focused, I think that there was a tendency to lose track of the political and community organizing, and activities on the ground, that are able to put together the actual coalitions of power throughout which you bring about redistributive change. And in some ways, we still suffer from that.

My wife has been my closest friend, my closest advisor. And ... she's not somebody who looks to the limelight, or even is wild about me being in politics. And that's a good reality check on me. When I go home, she wants me to be a good father and a good husband. And everything else is secondary to that.

I've called on Congress to repeal the so-called Defense of Marriage Act to help end discrimination to help end discrimination against same-sex couples in this country. Now, I want to add we have a duty to uphold existing law, but I believe we must do so in a way that does not exacerbate old divides. And fulfilling this duty in upholding the law in no way lessens my commitment to reversing this law. I've made that clear.

Campaigning is different from governing.

The notion that we can control the flow of information is obsolete.