Chuck Hagel: “I support the administration position that NATO's door remains open.”

When you have a national leader, our national world leader, who has left dignity behind, decency behind, honesty, integrity behind them, that's where you start.

Planning for climate change is not some frivolous waste of time, a waste of money. It is essential to our troops and to their wellbeing, and the national security of this country.

Not everyone at the White House has agreed with me.

No other capability we have is more important.