(CNN) — When Chinese leader Xi Jinping inserted a reference to “twists and turns” in his relationship with President Donald Trump in the opening remarks of their summit this week, he could hardly have ...

President Donald Trump’s announcement that the U.S. would revive nuclear weapons testing — which the U.S. has not done since 1992 — left experts, lawmakers and military personnel scratching their ...

The directive took even many of Trump’s advisers off guard, according to officials, leading to unanswered questions about when, or if, the testing would actually begin. Historically, it is the ...

“With others doing testing, I think it’s appropriate that we do also,” Trump said aboard Air Force One as he was returning to Washington. He said nuclear test sites would be determined later, and ...