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 Within half hour, Navy fighter jet and copter both go into the sea. Study sheds light on what killed half of Napoleon's grand army. Mystery donor to US troops has been identified. 'I'm Like a Bird' singer is flying away. See 1 photo Report an error