It means that he is the senior person in the chain-of-command of all of the military forces of the United States.
The US stands for United States. So, you will often see the American leader referred to as "the president of the United States." He is sometimes referred as the POTUS (President of the United States).
US President Franklin Delano Roosevelt was often referred to by his initials FDR.
The president's mansion is called the White House. That name is unofficial; it is referred to as the executive mansion in Congressional directives.
No, the US President is only the head of all United States armed forces. For that reason, the President is often referred to as the 'commander-in-chief'.
Tippacanoe (commonly referred to as Old Tippacanoe)was William Henery Harrison, the ninth president of the US
Chief of State is the president's role as the symbolic head of the US. This is also referred to as the Head of State.
She is referred to as the first lady.
As of 2017, no U.S. President's first or last initial was I.
President John F. Kennedy was referred to as a poor little rich kid by one of his rivals. He was the 35th President of the United States.
Reagan
mr president Currently, the president is referred to as "Mr. President."
No. The President of the US will allays be referred to as President. It is normal for an ex-President to be called "Former President so and so" when introduced in a TV show, but the correct title is President until death. Same holds true for Judges and Senators, but not for Representatives or lower offices.