He is a physicist and United States Department of Defense official, and was nominated by President Barack Obama on December 5,2014, and confirmed by the Senate on February 12,2015, to replace Chuck Hagel as the US Secretary of Defense.
He is a physicist. He is United States Department of Defense official. He was nominated by President Barack Obama on December 5,2014. He confirmed by the Senate on February 12,2015. This was to replace Chuck Hagel as the US Secretary of Defense.