Sources familiar with the situation said that National Security Adviser and former Florida congressman Mike Waltz will be stepping down. Here's why.

National Security Adviser Michael Waltz attends a meeting in the Oval Office of the White House in Washington, DC, on April 7 ...

President Donald Trump’s national security adviser Mike Waltz will depart the administration in the coming days, according to ...

Mike Waltz, President Trump's national security advisor, is leaving the White House weeks after he accidentally added a journalist to a Signal chat.

The Republican president said Waltz would instead be nominated to serve as the US’s ambassador to the United Nations.