I think most Americans understand that we went through a period in which American leadership was judged quite critically internationally.

I like to think that with me, what you see is what you get, and you can like or dislike it, it's up to you, but it's straight. That's something that I pride myself on.

We are safer if there are not nuclear arsenals around the planet that can be utilized, stolen, sold to terrorists and others who would do harm.

The Russians are clearly already engaged in a proxy war against the government of Ukraine. And that is something that we and the rest of the world have actively condemned and sanctioned Russia already heavily for, particularly the United States, as we have imposed now meaningful, tough sanctions in critical sectors, including the defense sector, the financial sector, and the energy sector.

It is manifestly in the interest of the United States to deal with the very real threat that climate change poses. And that's why President Obama has worked so hard to reduce our own emissions and to lead internationally in forging the Paris climate agreement.

I spend every day up at the United Nations where I have to interact with 192 other countries. I know how well the United States is viewed.

I was very happy in my job at the United Nations.