The President whose cabinet James Mattis served on assumed office on what date?
Cabinet of Donald Trump This article lists the members of President Donald Trump's Cabinet. Trump assumed office on January 20, 2017.
Timeline of the presidency of George H. W. Bush The presidency of George H. W. Bush began on January 20, 1989 when George H. W. Bush was inaugurated as President of the United States, and ended on January 20, 1993.