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 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.

There are plenty of lingering questions about the "Signalgate" fiasco. Donald Trump and his team are apparently no longer interested in getting answers.

U.S. National Security Advisor Mike Waltz received emails via his personal email account but has never used that account to send classified material, the White House said after The Washington Post reported Waltz and other National Security Council members used Gmail for government work.

But his emails! Sharing them with Google! Senior members of the US National Security Council, including the White House national security adviser Michael Waltz, have been accused of using their personal Gmail accounts to exchange sensitive information.