Senior members of the Trump administration’s National Security Council — including its top national security advisor, Michael Waltz — used Gmail to conduct government business, The ...

National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, according to a Washington Post report published yesterday.

Waltz inadvertently added The Atlantic's editor-in-chief to a group thread discussing sensitive national security matters.

National Security Advisor Mike Waltz and his deputy Alex Wong are resigning from the White House amid the "Signalgate" ...