Last week, the White House said the National Security Council, the White House counsel office and President Trump adviser Elon Musk were all looking into the mishap. But now, that probe has wrapped

The Trump administration has taken action to ensure a Signal group chat that inadvertently included The Atlantic editor-in-chief Jeffrey Goldberg can never happen again, White House press secretary Karoline Leavitt said Monday.

When Donald Trump selected Mike Waltz to serve as national security adviser, the choice was widely seen as win-win: A combat veteran with four Bronze Stars would bring his judgment to the White House and his deep-red Florida House district was safe in Republican hands.