Vice President Joe Biden's chief of staff will be leaving his post at the end of January, the White House announced Tuesday.
Ron Klain, a longtime Biden aide, has been working in the vice president's office since Pres. Obama's inauguration.
His resignation comes at a time of high turnover in the White House. On Monday, reports surfaced that Obama is considering new candidates to replace Pete Rouse as his chief of staff, including former Commerce Secretary William Daley.
Obama is also seeking a replace for Lawrence Summers, who left his post as head of the National Economic Council at the end of 2010.
Klain is a veteran of Democratic politics and the White House. He worked as Vice Pres. Al Gore's chief of staff during the Clinton administration.
In a statement, Biden sang Klain's praises for building relationships between his staff and the president's.
"Ron has done an exceptional job of building my team, implementing my direction on top priorities, and providing invaluable counsel," Biden said. "He has also played a key role in establishing the strong, positive relationship that exists between my staff and the president's team."