The president has said the U.S. will restart nuclear weapons testing, and claimed other powers were already doing the same.

President Donald Trump said Wednesday he had instructed the Defense Department to “immediately” start testing nuclear weapons "on an equal basis" with other nations. “Because of other countries ...

Former Chair of the Nuclear Regulatory Commission Gregory Jaczko and NBC News Correspondents Courtney Kube and Monica Alba join Meet the Press NOW to discuss President Trump’s announcement directing ...

Heading into Trump’s meeting on Thursday with Chinese leader Xi Jinping in South Korea, Semafor’s Ben Smith predicted the ...

President Donald Trump's comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to the bomb, but come as Washington's ...

President Trump's claim of Pakistan conducting secret nuclear tests reignited long-standing mysteries surrounding its opaque ...