To send a message directly to a BlackBerry user's PIN: 1  If the PIN is associated with one of your contacts: 2  Open the Messaging application and select the icon (the open envelope and pencil).
The name Executive Mansion was used in official contexts until President Theodore Roosevelt established the formal name by having the de facto name White HouseâWashington engraved on the stationery in 1901.
The White House, located in Washington, D.C. , is the president's official residence and the center of the administration. Under the United States Constitution, the President of the United States is the head of state and head of government of the United States.As chief of the executive branch and face of the federal government as a whole, the presidency is the highest political office in the United States by influence and recognition.his list includes only those persons who were sworn into office as president following the ratification of the United States Constitution, which took effect on March 4, 1789. For American leaders before this ratification, see President of the Continental Congress.