[With Donald Trump] we are moving into an era where a lot of people get their information through tweets and sound bites and some headline that comes over their phone.

I was pretty realistic to people about what we could get done, and the situation we were in, and trying to tamp down expectations. If you listen to my stump speeches, if you listen to what I said at Grant Park, I kept on saying, "Look, this is not just about me, this is not going to happen in one year, or one term, or even one presidency." And we tried to layer into everything we were saying a sense of hope, but also realism.

I want to reduce America's deficit by cutting spending that we don't need but also by asking the wealthy to do a little bit more so that we can invest in things like research and technology that are the key to a 21st century economy.

I believe the United States of America must remain a standard bearer in the conduct of war. That is what makes us different from those whom we fight. That is a source of our strength. That is why I prohibited torture. That is why I ordered the prison at Guantanamo Bay closed. And that is why I have reaffirmed America's commitment to abide by the Geneva conventions. We lose ourselves when we compromise the very ideals that we fight to defend.

There aren't a lot of situations where I look back and I say, The decision I actually made or the course we actually pursued was the wrong course.

I think Barack Obama 'll talk about the actions that we've taken, not just since 9/11, but since Paris, to help keep the American people and American interests safe.

If we aren't willing to pay a price for our values, then we should ask ourselves whether we truly believe in them at all.