WASHINGTON — President Donald Trump stood by his national security adviser, Mike Waltz, after The Atlantic’s editor-in-chief was accidentally added to a private, high-level chat on the ...

In his piece, Goldberg said he received a connection request on Signal on March 11 from a user with the name "Mike Waltz" without explanation. On March 13, Goldberg said he was added to a group ...

Goldberg reported that the user labeled "Michael Waltz" celebrated the launch of a series of airstrikes against the Houthis on March 15 at 1:48 p.m. ET, seven minutes before Goldberg checked X and ...