What Secretary Ash Carter is looking at is the constant pressure that Russia's putting on our European allies. The way that Russia is trying to move the boundaries of the post-World War II Europe. The way that he is trying to set European countries against one another, seizing territory, holding it in Crimea. Beginning to explore whether they could make some inroads in the Baltics.

What we've seen from Donald Trump has been so negative that nobody wants to be associated with that.

I'm really lucky to have the kind of people I've got around me. I've got such a great group of predominantly young people, but so diverse, and they bring different perspectives to the table. They will tell me exactly what's on their mind.

I made a mistake using a private e- mail.And if I had to do it over again, I would, obviously, do it differently. But I'm not going to make any excuses. It was a mistake, and I take responsibility for that.

I think that, given the threat that ISIS poses to the region and beyond, as we have sadly seen in our own country, it is important to keep the Iraqi army on a path where they can actually take back territory, to work with the Sunni tribes in Anbar province and elsewhere so that their fighters can be also deployed, to work with the Kurds to provide them the support, but they're doing the fighting. We're doing the support and enabling.

We got to think of something for people to do.

I'm one of these very focused people when it comes to day-to-day work, and I'm trying not to think about what comes next so that I can stay very focused on what I'm doing now.