Mueller
On
Americas
Behalf
Found this link:
https://thecaucus.blogs.nytimes.com/2011/07/27/senate-extends-term-of-f-b-i-director/
"But President Obama asked Congress to allow Mr. Mueller to stay on at the bureau, arguing that his national security team needed continuity because the Pentagon and the Central Intelligence Agency were getting new leaders."
Another snip:
"Before the confirmation vote, the ranking Republican on the Senate Judiciary Committee, Senator Charles E. Grassley of Iowa, said the complex process had established a historical record showing that any future exceptions to the term limit should not be undertaken lightly."