The former co-leader of Mayer Brown’s national security practice will be the Trump administration’s nominee to serve as the U.S. ambassador to Russia, the White House said on Friday.
![John Sullivan](https://images.law.com/contrib/content/uploads/sites/398/2019/10/John-Sullivan-Vert-201910111701.jpg)
John J. Sullivan has been serving as the U.S. Senate-confirmed second-in-command at the U.S. State Department since mid-2017. Sullivan would succeed Jon Huntsman as ambassador. Huntsman, who resigned in August, is reportedly mulling a run as governor of Utah.