When your team loses, everybody gets deflated. And it's hard, and it's challenging.

Part of what's changed in politics is social media and how people are receiving information.

The alternative, no limits on Iran's nuclear program, no inspections, an Iran that's closer to a nuclear weapon, the risk of regional nuclear arms race, and the greater risk of war - all that would endanger our [American] security.

I'm not sure we have the right strategy in Afghanistan. Let me think this over for a few months.

We will not apologise for our way of life.

A lot of countries have advanced capabilities. And given the vulnerabilities of our infrastructure and our economies to digital platforms, we have to be careful in making sure that this doesn't become a lawless, low-level battlefield.

I have been to this point unwilling to sign on to same-sex marriage primarily because of my understandings of the traditional definitions of marriage. But I also think you're right that attitudes evolve, including mine.