The federal government and our democracy is not a speedboat. It's an oceanliner, as I discovered when I came into office. It took a lot of really hard work for us to make significant policy changes, even in our first two years, when we had larger majorities than Mr. Trump will enjoy when he comes into office.

Part of what's changed in politics is social media and how people are receiving information.

Jason Rezaian is coming home. A courageous journalist for The Washington Post who wrote about the daily lives and hopes of the Iranian people, he's been held for a year and a half. He embodies the brave spirit that gives life to the freedom of the press. Jason has already been reunited with his wife and mom.

I will never forget who this victory truly belongs to. It belongs to you. It belongs to you. I was never the likeliest candidate for this office. We didn't start with much money or many endorsements. Our campaign was not hatched in the halls of Washington. It began in the backyards of Des Moines and the living rooms of Concord and the front porches of Charleston. It was built by working men and women who dug into what little savings they had to give $5 and $10 and $20 to the cause.

I decided to become a community organizer ... Change won't come from the top, I would say. Change will come from a mobilized grass roots.

I don't regret the excitement, because I do think that it helped us accomplish as much as we did.

Ultimately, only diplomacy can bring about a durable solution to the challenge posed by Iran's nuclear program. As President and Commander in Chief, I will do what is necessary to prevent Iran from obtaining a nuclear weapon. However, I have a profound responsibility to try to resolve our differences peacefully, rather than rush towards conflict.