Sources familiar with an internal probe said a chain of errors led to the accidental leak of a military operation.

A startling error by US national security adviser Mike Waltz reportedly led to The Atlantic editor-in-chief Jeffrey Goldberg ...

In a major security lapse, US President Donald Trump's National Security Advisor Mike Waltz mistakenly added The Atlantic ...

The White House’s assertion that the case is closed surrounding national security officials’ use of Signal is getting ...

President Donald Trump marked the week unveiling an unprecedented wave of tariffs on imports to the U.S., aligning with his ...

The firing of the head of the National Security Agency was only the latest move that has eroded the country’s fortifications ...

President Trump has always solicited information from dubious sources. But now, in his second term, he has fewer people ...

Trump purges Waltz’s staff after lobbying by Laura Loomer.

President Trump on Thursday confirmed a reported purge of national security agencies this week, with firings of at least a ...

The president called the activist, who met with him on Thursday, a ‘great patriot’ but denied she had any role in General ...

The president of the European Commission said that the bloc is “prepared to respond” with countermeasures to President Donald Trump’s tariffs but will attempt to negotiate with him first.

The move comes soon after far-right activist Laura Loomer urged Trump to purge staffers she deemed insufficiently committed ...