Before I could become a military officer or a Member of Congress, I was required to do one thing: Take an oath to the Constitution.

Military members understand that the focus is on completing the mission. We don't care if you are tall or short; have dark skin or pale skin or freckles; or are gay, straight, or transgender.

A comprehensive Syria strategy, ideally one that's more than 280 characters, remains a key requirement to protect U.S. interests in the Middle East.

The U.S. cannot implement a cogent strategy on the world stage if no one is sure whether to take the President seriously.

Probably my mother's life was prolonged beyond that of a long-lived family by her coming to Australia in middle life; and if I ever had any tendency to consumption, the climate must have helped me.

Clearly, climate change is an extremely important threat to us.

I'm not into animal rights. I'm only into animal welfare and health. I've been with the Morris Animal Foundation since the '70s. We're a health organization. We fund campaign health studies for dogs, cats, lizards and wildlife. I've worked with the L.A. Zoo for about the same length of time. I get my animal fixes!

The Keystone pipeline is one of those things that's sort of a political driver. And mostly, the Republicans use it to sort of embarrass the president and embarrass quite a few Democrats who feel that there's a potential for an environmental disaster.