From Jan. 20, 2017, until Jan. 20, 2021, Donald Trump was president of the United States. This is a position that includes many perks, offered to the person who was selected by American voters to serve as chief executive. Perhaps the most impressive of those perks is use of the White House, the executive mansion — a residence and office building that serves as a command center for whoever receives a majority of the electoral votes cast in the most recent election.