The President is head of the departments of government which carry out the laws.He (until now the president has always been a man) is the leader of the country (like a king or queen) and head of the army. He is elected for four years,and can only be elected twice. He can say 'no' to laws passed by Congress (but Congress can also say 'no' ti him) , and he chooses the judged for the Supreme Court. He lives and works in the White House in Washington DC.