Pete Hegseth has spent vast amounts of time during his first five months in office promoting the social changes he's making at the Pentagon. He’s been far less visible in the administration’s more critical international security crises and negotiations involving Russia,

Defense Secretary Pete Hegseth is expected to field sharp questions from members of Congress about his tumultuous start as Pentagon chief in a series of hearings beginning Tuesday. He's likely to be asked about his sharing of sensitive military details over a Signal chat.