The AP has the breaking news, which NBC News' Mike Viqueira has confirmed:
Two administration officials tell The Associated Press that William Daley will be the next White House chief of staff.
President Barack Obama has chosen Daley, a former commerce secretary, to replace interim chief of staff Pete Rouse.
Rouse, who did not want to stay in the job and recommended Daley for it, will remain at the White House in a senior position as counselor to Obama.
The officials spoke on condition of anonymity because Obama has not yet made the announcement. Obama is expected to do so later Thursday.
*** UPDATE *** The White House now says President Obama will make a personnel announcement at 2:30 pm ET, ostensibly to unveil Daley as his new chief of staff.