The president also named Patrick Shanahan as acting Secretary of Defense.
I am pleased to announce that our very talented Deputy Secretary of Defense, Patrick Shanahan, will assume the title of Acting Secretary of Defense starting January 1, 2019. Patrick has a long list of accomplishments while serving as Deputy, & previously Boeing. He will be great!
— Donald J. Trump (@realDonaldTrump) December 23, 2018
I think I speak for millions of Americans in thanking Secretary Mattis for a lifetime of exceptional and dedicated service to our nation.
I know he will continue to contribute to our national security for many years to come.
— Lindsey Graham (@LindseyGrahamSC) December 23, 2018