John McCain: “The most recent QDR was supposed to take a hard look at requirements and challenges over the next 20 years.”

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.

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.

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

The president should not have this meeting with Vladimir Putin.