John McCain: “I guess I have a question for all four of you.”

The Department of Energy's defense atomic energy programs are critically important to our national security.

The National Defense Strategy offers a new framework for thinking about the global challenges we face and that places China squarely at the top of our priority list.

I'm the luckiest guy on earth. I have served America's cause, the cause of our security and the security of our friends, the cause of freedom and equal justice all my adult life.

As we turn our focus to great power competition and near-peer threats, we must face up to the true nature of the reality of Chinese power and ambition.