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.

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 White House said Monday it has concluded its review into how a journalist was added to a Signal message group chat, as high-ranking officials discussed military strikes in Yemen, calling the case "closed.