When did the former U.S. Secretary of Homeland Security assume the office of White House Chief of Staff?
Elaine Duke Elaine Costanzo Duke (born 1958) is an American civil servant who is the current Acting United States Secretary of Homeland Security. On January 30, 2017, she was nominated by President Donald Trump to become the United States Deputy Secretary of Homeland Security under John F. Kelly. She became acting Secretary of Homeland Security on July 31, 2017, when John F. Kelly assumed the office of White House Chief of Staff.
George Sifakis George Anthony Sifakis is a government relations professional and the departing Director of the Office of Public Liaison. Following his role on the Presidential Transition, assisting with the confirmation process of Sec. Designate Wilbur Ross, Sifakis was appointed by President Donald J. Trump on January 23, 2017 as Special Assistant to the President and Deputy Director of the Office of Public Liaison. On March 6, 2017 Sifakis was Appointed by President Trump as Assistant to the President and Director of the Office of Public Liaison. On August 18, 2017, multiple Trump Administration sources acknowledged to Politico that Sifakis would be departing the White House.