Attorney General William P. Barr issued the following statement: “Yesterday in the Great Hall at the Department of Justice, we celebrated Rod Rosenstein's 29 years of outstanding service to the Department of Justice, and bid a fond farewell to an exceptional Department leader and friend. Over the last year, Rod has been well-served by his Principal Deputy, Ed O'Callaghan. Ed is a top-notch attorney whose intellect, competence, judgment, and experience are evident in every task he takes on. That is why I have asked him to serve as the Acting Deputy Attorney General until the Senate confirms Deputy Attorney General Rosenstein's successor, Jeffrey Rosen. I am confident that Ed will be an excellent Acting Deputy Attorney General during this interim period."
Source: US Department of Justice