President Joe Biden on Friday named his former top Covid-19 aide Jeff Zients to White House chief of staff -- one of the most crucial positions in an administration gearing up for a likely re-election campaign.
Zients replaces Ron Klain, who saw Biden through the first two years of his term in the post, arguably the most powerful behind-the-scenes job in any US administration. The swap will take place on February 8, a day after Biden delivers his State of the Union address to Congress.
