It will take time to eradicate a cancer like Isil. And any time we take military action, there are risks involved - especially to the servicemen and women who carry out these missions. But I want the American people to understand how this effort will be different from the wars in Iraq and Afghanistan. It will not involve American combat troops fighting on foreign soil.

A sportswriter once referred to him as our future president. With a name like Kevin, I don't know whether that's possible.

We've got to be able to have a conversation and recognize we're all Americans; we all want the best for this country. We may have some disagreements in terms of how to get there, but all of us want to make sure that our economy is strong, that jobs are growing. All of us want to make sure that people aren't bankrupt when they get sick. All of us want to make sure that young people can afford an education.

Climate change constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.

Don't let your failures define you.

The conversations have been cordial. [Donald Trump] has been open to suggestions, and the main thing that I've tried to transmit is that there's a different between governing and campaigning, so that what he has to appreciate is as soon as you walk into this office after you've been sworn in, you're now in charge of the largest organization on Earth.

In the fight against ISIL, we cannot rely on an Assad regime that terrorizes its people; a regime that will never regain the legitimacy it has lost. Instead, we must strengthen the opposition as the best counterweight to extremists like ISIL, while pursuing the political solution necessary to solve Syria's crisis once and for all.