President Donald Trump said he was hearing about The Atlantic’s bombshell report for the first time when asked by a reporter about it Monday afternoon.

On Monday it was revealed that top Trump administration officials were using a commercial messaging app to plan military attacks. What is Signal?

President Donald Trump expressed confidence in his national security adviser, Michael Waltz, in an interview with NBC News on Tuesday amid the fallout from senior officials inadvertently including a journalist on a private message chain discussing airstrikes in Yemen.

It comes after a report said that Trump administration officials, including Waltz, inadvertently texted secret war plans to a journalist

President Donald Trump is not too upset with White House officials accidentally sharing war plans with The Atlantic editor-in-chief Jeffrey Goldberg, apparently. The president on Tuesday morning said national security advisor Michael Waltz –who inadvertently added Goldberg to a Signal group chat in which several Trump officials discussed striking the Houthis — had "learned a lesson.

Ukrainian President Volodymyr Zelenskyy's highly anticipated meeting with former US President Donald Trump at the White House in February took an unexpected turn, leading to a diplomatic misstep that left both sides unsettled.

European officials saw the screenshots as more proof in private of what the Trump team has indicated in public: scorn for America’s traditional allies.

Trump officials have demanded more European military spending and questioned the continent’s values. Leaked messages show the depth of the rift.