Donald Trump promises to put 'America First' in inauguration speech

Former U.S. President Barack Obama speaks with Ivanka Trump and other members of the family of U.S. President Donald Trump during inauguration ceremonies swearing in Trump as the 45th president of the United States on the West front of the U.S. Capitol in Washington, U.S., January 20, 2017. REUTERS/Brian Snyder

Steve Holland

Donald Trump was sworn in as the 45th president of the United States on Friday, succeeding Barack Obama and telling a bitterly divided country he will pursue "America First" policies at home and abroad.