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.

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

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.

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.

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.

President Donald Trump plans to speak at Fort Bragg to celebrate the 250th anniversary of the U.S. Army as he deploys the military in an attempt to quiet immigration protests in Los Angeles.

Defense Secretary Pete Hegseth is expected to field sharp questions from members of Congress about his tumultuous start as Pentagon chief, including his sharing of sensitive military details over a Signal chat, in three separate Capitol Hill hearings beginning Tuesday.

At least three people have turned down potential roles working for the defense secretary and former Fox News host. Supporters say his leadership has been effective.