Here's the statement on David Petraeus' departure from the CIA.

Today, CIA Director David Petraeus submitted his letter of resignation to the President. Dave’s decision to step down represents the loss of one of our nation’s most respected public servants. From his long, illustrious Army career to his leadership at the helm of CIA, Dave has redefined what it means to serve and sacrifice for one’s country.

Since he took over as Director in September of last year, he and I have worked together to tackle some of the most challenging issues faced by the Intelligence Community in more than a decade. Under his leadership, the CIA remained instrumental in providing our policy makers decision advantage through the best possible intelligence. I’m particularly thankful for Dave’s unwavering support and personal commitment to my efforts to lead the Intelligence Community and integrate our intelligence enterprise.

Whether he was in uniform leading our nation’s troops in Iraq and Afghanistan, or at CIA headquarters leading the effort to generate intelligence used to keep our nation safe, Dave inspired people who had the privilege of working with him.

I have spent more than five decades serving our country–in uniform and out–and of all the exceptional men and women I have worked with over the years, I can honestly say that Dave Petraeus stands out as one of our nation’s great patriots.

On behalf of the entire Intelligence Community, I thank Dave for his service, his support and his continued friendship.