Article continues below advertisementAuthor Stephen King, known by book lovers as the King of Horror - blasted President Donald Trump on President's Day, describing him as "a brainless bag of guts" in a social media post."Happy President's Day! I assume that includes the brainless bag of guts and waters currently inhabiting the defaced shambles of the Peoples' House," the best-selling horror novelist wrote on Monday, February 16.King is a vocal critic of Trump, consistently describing him as "worse than any horror story" he has written and a "horrible person.