Books J.K. Rowling mocks President Trump for 'negative polls' tweet The author joked about the president's use of 'fake news' By Christian Holub Christian Holub Christian Holub is a writer covering comics and other geeky pop culture. He's still mad about 'Firefly' getting canceled. EW's editorial guidelines Published on February 6, 2017 12:38PM EST Photo: Mike Marsland/WireImage; Andrew Harrer/Bloomberg via Getty Images J.K. Rowling has posted another withering tweet about President Donald Trump. Never one to hide her political opinions, the Harry Potter author fired back at Trump on Monday after the president claimed negative polls about him are "fake news." "Can you imagine how many mirrors this man must have smashed?" Rowling joked. In response to his low favorability ratings and massive protests against his immigration executive order on a level unseen since the Vietnam War, Trump declared that any proof of these things is false. "Any negative polls are fake news, just like the CNN, ABC, NBC polls in the election. Sorry, people want border security and extreme vetting," the president wrote on Twitter without evidence to back up his claims. This isn't the first time Rowling has blasted Trump or his supporters. Just last week, she mocked a fan who threatened to burn Harry Potter books and movies because of Rowling's views.