![Author Stephen King says been blocked from President Donald Trump's Twitter account.](http://web.archive.org./web/20170614070829im_/https://www.fairfaxstatic.com.au/content/dam/images/g/w/q/m/2/r/image.related.wideLandscape.300x169.gwqlho.png/1497423078042.jpg)
Trump blocks Stephen King on Twitter but Rowling offers help
It doesn't take much to provoke US President Donald Trump into blocking a follower on Twitter - anything from an insult to an unflattering gif to a mild "covfefe" joke seems enough to do the trick.