DC VIP is an acronym for the four most important political figures in Washington D.C., the capital of the United States. The acronym stands for President (4 letters), SENATOR (3 letters), POTUS (5 letters) and SENATOR (7 letters). The President is the head of the executive branch of the US government, while the SENATOR is a member of the legislative branch. POTUS stands for President of the United States, and is the title given to the President. Finally, a SENATOR is a member of the upper house of the US Congress.