With the change, the Trump administration has also backed away from a signature effort to stay ahead of China in the A.I.

President Donald Trump’s nominee for U.S. ambassador to the United Nations is facing questioning from lawmakers for the first time since he was ousted as national security adviser ...

President Donald Trump's nominee for U.S. ambassador to the United Nations will face questioning from lawmakers for the first ...

His hearing provides senators with the first opportunity to grill Waltz over mistakenly adding a journalist to a private ...

President Donald Trump’s nominee for U.S. ambassador to the United Nations is facing questioning from lawmakers for the first time since he was ousted as national security adviser ...

President Donald Trump and Sen. David McCormick of Pennsylvania jointly announced tens of billions of dollars of energy and ...

The Kremlin said on Tuesday that U.S. President Donald Trump's recent statements, including a threat of sanctions on buyers ...

Pentagon officials said details were still being worked out, and experts doubted Mr. Trump’s threat of huge tariffs for ...