Goodbye from the world's biggest polluter.

The United States of America will not permit the world's most dangerous regimes to threaten us with the world's most destructive weapons.

... for those of us who lived through these events, the only marker we'll ever need is the tick of a clock at the 46th minute of the eighth hour of the 11th day.

Theres a lot of blowhards in the political process, you know, a lot of hot-air artists, people who have got something fancy to say.

The world must understand that it is the time to come together to address the root cause of the problem, and the problem is you have a state within a state. You had people launch attacks on a sovereign nation without the consent of the government in the country in which they are lodged.

They have miscalculated me as a leader.

As I look back over my life, I've been an active person - obviously I was self-absorbed for a period of time.