Politics | Donald Trump Watch Donald Trump Get Sworn Into Office It's official By Michael Harthorne Posted Jan 20, 2017 11:15 AM CST Copied Watch Donald Trump Get Sworn Into Office Chief Justice John Roberts swears in Donald Trump as the 45th president of the United States on Friday. (CNN) Donald Trump was sworn in as the 45th president of the United States on Friday in Washington, DC. CNN has the video of Chief Justice John Roberts administering the oath of office. Read These Next The Ukraine's '2nd most powerful man' in out. The shark killed his girlfriend. He nearly died fighting it. One mystery is solved around chilling Holocaust photo. Researchers have an idea of what brought down this civilization. See 1 photo Report an error