Rep. Mike Waltz was reportedly ousted for pressuring Trump to take military action against Iran, conflicting with evolving ...

Two sources told The Washington Post that Trump had been frustrated with Waltz over foreign policy for months, and that Signalgate was the last straw.

As defense startups proliferate, they look to the Pentagon for contracts—while encouraging it to reform itself.

A jolt of staff upheaval this week made Marco Rubio the first person in 50 years to hold the top two national security jobs ...

This week’s White House Report Card finds President Donald Trump cruising into his second 100 days with another major promise ...

President Donald Trump’s removal of national security adviser Mike Waltz brings further disruption to his national security ...

The fired national security adviser engaged in intense coordination with Israeli Prime Minister Benjamin Netanyahu about ...

They see this moment as a generational opportunity—perhaps the last they’ll get before a debt crisis hits—to do so. In a ...

National security adviser Mike Waltz and his deputy, Alex Wong, will be leaving their posts in the Trump White House, ...

Maritsa Georgiou, who hosts the podcast "Grounded" with former Sen. Jon Tester, beaks down the week's top political headlines ...

The president said Secretary of State Marco Rubio will serve simultaneously as acting national security adviser while ...

Here's a look at what happened in the U.S. government this week: President Donald Trump marked his 100th day in office with a ...