President Donald Trump’s claim that he was unaware of a cabinet-level breach of classified information—an incident reportedly involving up to 18...

MSNBC's Jonathan Lemire reported that President Donald Trump is taking a wait-and-see approach to the explosive report about his national security...

MSNBC's Jonathan Lemire reported that President Donald Trump is taking a wait-and-see approach to the explosive report about his national security...

Fox News' chief national security correspondent broke with many on her right-wing network Wednesday, telling social media followers that Defense...

Top US national security officials defended the defense secretary's sharing of sensitive military information in a group chat that included a...

Top US national security officials defended the defense secretary's sharing of sensitive military information in a group chat that included a...

Under Guideline K—Handling Protected Information—intentions are secondary to outcomes. And while government officials are arguing classified...

U.S. National Security Advisor Mike Waltz was ridiculed Tuesday afternoon as he tried to blame the reporter Waltz reportedly invited into a Signal...

U.S. National Security Advisor Mike Waltz was ridiculed Tuesday afternoon as he tried to blame the reporter Waltz reportedly invited into a Signal...

A bombshell report in The Atlantic revealed that Secretary of Defense Pete Hegseth shared classified war plans in a Signal chat that included a...