The term PREZ'S BACKUP is a reference to the Vice President of the United States, who is the backup to the President. The Vice President is often referred to as the VEEP, which is a four letter acronym. The Vice President is the second-highest ranking official in the executive branch of the United States government and is elected alongside the President. The Vice President is also the President of the Senate and has the power to cast a tie-breaking vote in the Senate.