America January 20, 2017 9:13 am Donald Trump Sworn in as 45th President On Jan. 20, as revelers celebrated and protesters and disrupters clashed with police across the city, Donald Trump was sworn in as the 45th president of the United States. US & World Videos 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments