I’ve often said that global climate change is an issue where no one has the luxury of being “half-pregnant.” You either are or you aren’t. And so it is with climate change. You either understand and accept the science – or you don’t. Folks this isn’t a cafeteria where you can pick and choose and accept the science that tells us what is happening, but then reject the science that warns us what will happen.

America is the one that leads the effort to make sure the freedom of navigation in the South China Sea is protected.

The Russians need to understand that you cannot have peace [in Syria] unless you resolve the question of Sunni buy-in.

Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction ... So the threat of Saddam Hussein with weapons of mass destruction is real.

I think the United States is still the indispensable force for positive change and for rule of law and for order and structure.

I know something about aircraft carriers for real.

There are all kinds of atrocities, and I would have to say that, yes, yes, I committed the same kind of atrocities as thousands of other soldiers have committed in that I took part in shootings in free fire zones. I conducted harassment and interdiction fire.