White House scrambles to contain Signal chat fallout

The White House on Wednesday scrambled to contain the controversy of a Signal chat among national security officials that became public, opting for its signature defiant approach but one that left even some Republicans scratching their heads.

After The Atlantic published messages from the chat, which editor-in-chief Jeffrey Goldberg was mistakenly added to, administration officials went on the attack against the publication and downplayed the significance of the revelations.

Officials...