Trump defends doctor who claimed medicine is made from alien DNA and walks out of briefing mid question

Read MoreDonald Trump doubled down on his decision to retweet a video of Houston doctor Stella Immanuel in which Ms Immanuel touts the effectiveness of hydroxychloroquine in treating patients of Covid-19 and dismisses masks as unnecessary in stopping its spread.Donald Trump doubled down on his decision to retweet a video of Houston doctor Stella Immanuel in which Ms Immanuel touts the effectiveness of hydroxychloroquine in treating patients of Covid-19 and dismisses masks as unnecessary in stopping its spread.