President Joe Biden has announced Jeff Zients as his next chief of staff, replacing Ron Klain who is expected to leave following the President's State of the Union address. Zients has a long history of public service, including roles in the Obama administration, and is seen as a positive step forward for the Biden administration. He is expected to take on the role of chief of staff shortly after Klain's departure, and it is unclear who will replace Zients in his current role as coordinator of the Covid-19 response.