I'll be the first US president to not only visit Kenya and Ethiopia, but also to address the continent as a whole, building off the African summit that we did here which was historic and has, I think, deepened the kinds of already strong relationships that we have across the continent.

The authorization I propose would provide the flexibility to conduct ground combat operations in other more limited circumstances, such as rescue operations involving U.S. or coalition personnel or the use of special operations forces to take military action against ISIL leadership, it would also authorize the use of U.S. forces in situations where ground combat operations are not expected or intended, such as intelligence collection and sharing, missions to enable kinetic strikes or the provision of operational planning and other forms of advice and assistance to partner forces.

In sectors like energy, I haven't been arguing for more spending per se; I've been arguing that it doesn't make sense for us to spend $4 billion subsidizing an oil industry that's mature and very profitable. We should be using that money to finance clean energy of the future.

I think that Donald Trump is coming to this office with fewer set hard-and-fast policy prescriptions than a lot of other presidents might be arriving with.

I'm asking you to believe. Not just in my ability to bring about real change in Washington . . . I'm asking you to believe in yours." Keeping faith with those who serve must always be a core American value and a cornerstone of American patriotism. Because America's commitment to its servicemen and women begins at enlistment, and it must never end.

I think we've done a pretty good job staying in touch with the American people. But at a certain point you can't help but lose some feel for what's on the ground because you're not on the ground.

One of the things I've learned about being president is that we'll work on issues for long periods of time, sometimes in obscurity.