Timeline: Defense Secretary Lloyd Austin's hospitalization

The Pentagon released more information Monday about Defense Secretary Lloyd Austin's hospitalization after facing questions for why President Biden, Congress, and the public were not aware of Austin's hospitalization for several days.

The White House and Deputy Secretary of Defense Kathleen Hicks, who took over some responsibilities on Jan. 2, did not know Austin had been hospitalized until Jan. 4, when Austin's chief of staff notified them, according to Pentagon press secretary Maj. Gen. Patrick Ryder. 

Ryder said Monday that the delay was due in part to the fact that Austin's chief of staff, Kelly Magsamen, was sick with the flu.