White House Chief of Staff Ron Klain is preparing to step down in the coming weeks, according to a report from The New York Times.

Klain, a longtime adviser to President Joe Biden, supported Biden through his 2020 campaign and has helped guide his administration since he was elected to office. After the midterm elections in November and an action-packed two years in the White House, Klain has told colleagues that he is ready for something different, the report said.

A search for Klain’s replacement is reportedly underway, but it is not clear if a successor has already been chosen or when the decision will be announced.

Klain previously acted as Biden’s chief of staff during former President Barack Obama’s first term, and he’s worked with Biden since he ran for president back in 1987. Biden selected Klain as his chief of staff in November 2020, and he has been a part of the administration’s various successes and failures ever since — Klain helped oversee the Covid-19 relief plan and vaccine distribution, the bipartisan infrastructure program and historic investments in climate change while battling high levels of inflation and slowing economic growth.