Pete Hegseth's tenure as defense secretary has resulted in numerous changes at the Pentagon, particularly for journalists covering the Department of Defense. CBS News national security correspondent David Martin explains.

Defense Secretary Pete Hegseth told Congress Tuesday that the Pentagon’s collaboration with Elon Musk’s Department of Government Efficiency found $6 billion in cuts so far from the agency’s budget of nearly $1 trillion.

The defense secretary annoyed Donald Trump with a favor for Elon Musk. Hegseth’s problems only grew from there.

Pete Hegseth was embedded squarely in the hot seat Tuesday as one congresswoman took him to task over the Pentagon's plans for submarine production.

The Pentagon watchdog is looking into whether any of Defense Secretary Pete Hegseth’s staffers were asked to delete Signal messages that may have shared sensitive military information with a reporter.

Hegseth ordered dismissal 75% of civilians working for Pentagon office that conducts live-fire tests of U.S. weapons systems.

WASHINGTON — President Trump’s deployment of the National Guard and Marines to Los Angeles to stop rioting could last 60 days and is estimated to cost at least $134 million, the Pentagon revealed Tuesday — as House Democrats slammed Defense Secretary Pete Hegseth over his role in the mission.

Inspector general is also examining if any messages about imminent U.S. airstrikes in Yemen were expunged.

Defense Secretary Pete Hegseth is defending the Trump administration over his deployment of the military to LA. Follow along for live updates.