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.

The Trump administration sought to put the scandal over its use of the Signal messaging app behind it on Monday, calling it case closed, even as the breach provoked bipartisan criticism and opened up divisions inside the White House.