Inside the bizarre White House Signal slip that nearly got Mike Waltz fired
Atlantic editor Jeffrey Goldberg was 'accidentally' added to a White House Signal group discussing potential Yemen strikes ...
Internal investigation exactly how Jeffrey Goldberg ended up added to White House Signal chat
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.