Former CIA Director General David Petraeus has hired a top Washington lawyer to help him navigate the fallout from a career-ending affair, Reuters has confirmed.

The lawyer, Robert Barnett of Williams & Connolly, is known for negotiating book deals for the political elite, from President Barack Obama to one-time vice presidential candidate Sarah Palin.

Barnett will help Petraeus as he exits government, Reuters confirmed. The news was first reported by Politico, which said that no book is planned.

The Central Intelligence Agency, the Justice Department and Congress are investigating Petraeus' conduct over the extra-marital affair with his biographer, Paula Broadwell.