Speaking to The Guardian Sunday, the sources gave a first-time glimpse into the White House's probe into the slip-up - and several 'missteps' made by Waltz in the process.

Trump's national security advisor Mike Waltz mistakenly saved the number of The Atlantic Magazine editor Jeffrey Goldberg ...

A hard-won Senate confirmation was not enough to keep the aroma of scandal away from Secretary of Defense Pete Hegseth for long.

The declaration from the White House that the case is closed on Signalgate is receiving pushback in Congress, including from ...