The only reason I send a single young man or woman in uniform anywhere in the world is because I think it's necessary to keep us safe.

Because this is a country where everyone deserves the same freedom and opportunities to fulfill their dreams.

Sometimes when these kinds of things happen, it can seem a little bit too much to bear. But what I want the people of Louisiana know is that you're not alone on this. Even after the TV cameras leave, the whole country is going to continue to support you and help you until we get folks back in their homes and lives are rebuilt.

When people see opportunity, when they have a sense of control of their own destiny, then they're less vulnerable to the propaganda and twisted ideologies that have been attracting young people - particularly being turbocharged through social media.

What I would advise, what I advised before the election, and what I will continue to advise after the election, is that elections matter; voting matters; organizing matters; being informed on the issues matter.

I wonder, sometimes, whether men and women in fact are capable of learning from history--whether we progress from one stage to the next in an upward course or whether we just ride the cycles of boom and bust, war and peace, ascent and decline.

Americans... still believe in an America where anything's possible - they just don't think their leaders do.