I continue to believe that she has not jeopardized America's national security. Now, what I've also said is that, and she's acknowledged, that there's a carelessness in terms of managing emails that she has owned and she recognizes. But I also think it is important to keep this in perspective. This is somebody who has served her country for four years as secretary of state and did an outstanding job, and no one has suggested that in some ways, as a consequence of how she handled emails, that that detracted from her excellent ability to carry out her duties.

For me, personally, the most difficult moments had to do with not just terrorist attacks, but also shootings.

It may be something that future generations are more open to, but I am pretty confident that for the foreseeable future, using the argument of nondiscrimination, and "Let's get it right for the kids who are here right now," and giving them the best chance possible, is going to be a more persuasive argument.

It is important to combine structural reforms and good fiscal stewardship with a growth strategy, because when your economy's growing and more revenue's coming in, that helps relieve debt.

The government has to treat all citizens equally. I am a strong supporter not of a weak version of civil unions, but of a strong version, in which the rights that are conferred at the federal level to persons who are part of the same-sex union are compatible. When it comes to federal rights, the over 1,100 rights that right now are not being given to same-sex couples, I think that's unacceptable.

Just from a political perspective, do you think the president of the United States going into re-election wants gas prices to go up higher? Look, here's the bottom line with respect to gas prices: I want gas prices lower because they hurt families.

There are legitimate concerns and anxieties that the forces of globalisation are leaving too many people behind - and we have to take those concerns seriously and address them. But the answer isn't to turn inward and embrace protectionism. We can't just walk away from trade.