Ty Cobb, a longtime Hogan Lovells partner based in Washington, D.C., has joined President Donald Trump's legal team as special counsel. His last day at Hogan Lovells will be July 30, the firm's chairman said in an all-firm email sent Friday afternoon.

The White House had not officially announced the appointment as of late Friday afternoon, and several leaders and a spokesman for Hogan Lovells did not respond to requests for comment. Cobb's email was set to an out-of-office auto reply Friday, saying he's “currently on travel.”

The National Law Journal obtained a copy of the email written by Hogan Lovells chair Stephen Immelt announcing Cobb's departure from the firm and confirmed his move with two other sources.