U.N. ambassador nominee Mike Waltz denied sharing sensitive information during a mobile app chat in March during a Senate Foreign Relations Committee hearing.

Sen. Cory Booker, D-NJ, criticized Waltz’s inability to take accountability. Booker said Waltz “denied” and “deflected” rather than own up to his mistakes, something the New Jersey senator said is a “failure of leadership.” He called Waltz’s actions a show of “profound cowardice.”

Former Trump advisor Mike Waltz defended his use of Signal for discussing military operations, citing a Biden administration cybersecurity guidance th