John McCain: “If each of you is confirmed, the environment that you would face will be uncertain and potentially volatile.”

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.

Today's press conference in Helsinki was one of the most disgraceful performances by an American President in memory. The damage inflicted by President Trump's naivete, egotism, false equivalence and sympathy for autocrats is difficult to…

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

A North Korean missile with a nuclear payload capable of striking the United States Homeland is no longer a distant hypothetical--it is an imminent danger.