Barack Obama was “sworn in” as president of the United States on Sunday.
It’s his second term as president. A term is four years; because he won the election in November, he is slated to serve another four years.
Obama was sworn in by taking an “oath of office.” An oath of office is a promise he makes in accepting the job of U.S. president.
In taking the oath, he promised to “faithfully execute the office of president of the United States and will, to the best of my ability, preserve, protect and defend the constitution of the United States so help me God.”