The president's bombastic threats may portend a catastrophic attack that could affect the entire world.
The president says his administration will work with Congress to address the deal's "many flaws."
Before Donald Trump destroys the best global foreign policy achievement of the last decade, the world community has to stop him.
"It is imperative that Pyongyang and Washington find some way to ease the escalating tension and reach a lasting, peaceful agreement," the former president writes.
The secretary of state evades questions on the matter while declaring he never considered abandoning his job, disputing what he called "erroneous" stories.
The secretary of state says China is working hard to convince Pyongyang to re-enter talks but did not say what form those should take.
In a coordinated effort, some of Trump’s aides have worked to maintain—if not expand—the American footprint and influence abroad.