Donald Trump was sworn in as US president on Monday, January 20, for a second term in the White House, ushering in a new era of potential upheaval on the domestic and international stage. "The golden age of America begins right now," he asserted at the start of his speech.

The 47^th president of the United States has promised to expand the prerogatives of the executive branch, deport millions of immigrants, take revenge on those perceived as his "political enemies" and transform the role of the US in the diplomatic arena.