The White House has nominated Gregory L. Schulte to be Representative of the United States of America to the International Atomic Energy Agency, with the rank of Ambassador.
The United States has been without an Ambassador to the IAEA since Ken Brill left in July 2004. Bush withdrew the nomination of James Cunningham under pressure from Senators Jon Kyle (R-AZ) and James Inhofe (R-OK).
Here is a biography from Schulte’s nomination as Executive Secretary of the National Security Council. I don’t know Schulte, but he doesn’t seem ideological in the mold of Bolton et al.
Apparently, Bush has decided to attend to the IAEA and the nonproliferation regime—although you wouldn’t know from the meltdown the US engineered at the NPT REVCON.