The FBI was searching the home of former national security adviser John Bolton, who has become a critic of President Trump, according to news reports.

The move is the latest effort by the Trump administration to shift the public’s attention to the 2016 election.

Director of National Intelligence Tulsi Gabbard announced plans to shrink her agency by 40% by the end of the year in what she called an effort to make the office more efficient, even as she clashes with the national security community she leads.

CIA Director John Ratcliffe provided FBI Director Patel the intelligence that was the basis of the search warrant, a source familiar with the matter told NBC News.

Director of National Intelligence Tulsi Gabbard announced the revocation of 37 security clearances of current and former officials who “abused public trust by politicizing and

The Trump administration’s announcement this week that it would rescind the security clearances of 37 current and former national security officials was hardly an isolated act.

The FBI, Texas Tech and Angelo State have entered an agreement to help further and strengthen America's national security needs. Here's what to know.

Joe Francescon, a former Trump administration official, is the new deputy director at the National Security Agency. This follows a leadership change i