US President Donald Trump, who for months refused to encourage mask wearing as a way to combat the coronavirus, tweets a picture of himself with his face covered and touts his patriotism. "We are United in our effort to defeat the Invisible China Virus, and many people say that it is Patriotic to wear a face mask when you can't socially distance," Trump writes.

ANIMATED TWEET by US President Donald Trump and SCREENGRAB from US President Donald Trump's official Twitter account