Ron Klain, President Joe Biden’s former chief of staff and longtime Democratic political operative, will leave O’Melveny & Myers after seven months to become chief legal officer at Airbnb on Jan. 1.

Klain left the White House in February and two months later rejoined the Washington, D.C., office of O’Melveny, where he was a partner from 1999 to 2004. He returned after O’Melveny chair Brad Butwin recruited him to lead the firm’s new crisis management practice.