John McCain: “It is unclear whether North Korea is now truly committed to real verification, a full accounting of all nuclear…”

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.

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

I am convinced the only successful path to preserving the rules-based order in the Indo-Pacific--and the peace and prosperity it has generated--is to renew America's leadership in the region in full.

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…