Toughest decision was early in my presidency when I ordered 30,000 more troops into Afghanistan. As somebody who had run to end a large troop presence overseas.

American politics is always somewhat fluid. In this age of social media, it means that voters can swing back and forth.

My presidency is not over. I've got another five years coming up.

Before we get too depressed about the state of our politics, let's remember our history ..... Many forms of Government have been tried, and will be tried in this world of sin and woe. What is amazing, is that despite all the conflict, our experiment in democracy has worked better than any form of government on earth

I think at a certain age I became conscious of the power of words. And it was fairly late. I was kind of a goofball - but I was always subconsciously thinking about issues.

Being attentive to inequality and not tone deaf to it. But offering prescriptions that are actually going to help folks in communities that feel forgotten. That's going to be our most important strategy. And I think we can successfully do that.

Isil poses a threat to the people of Iraq and Syria, and the broader Middle East - including American citizens, personnel and facilities. If left unchecked, these terrorists could pose a growing threat beyond that region, including to the United States.