Attorney General Jeff Sessions, who has been under fire in recent months for his contacts with Russian officials during the 2016 presidential race, has retained the services of Washington lawyer Charles J. Cooper, a longtime friend.

Cooper was seen sitting behind Sessions when he testified last week before the Senate Intelligence Committee about President Trump and Russia.

“I do represent the Attorney General, but, as with all clients, do not comment on confidential client matters,” Cooper wrote in an email to The Washington Post.