Author J.K. Rowling is known for her scathing quips toward people who say things that are sexist, racist, homophobic or generally awful. Also she wrote the very, very famous Harry Potter Series.
This time she tweeted back to a Donald Trump spokeswoman who made a zenophobic remark regarding Americans born outside the U.S. who are (or would like to be) leaders of the country. 
Ouch, Katrina Pierson. You need a freezing spell for that burn?
Christian Voice, "a UK-based prayer and lobby group praying for national repentance and working for godly government" went after Olympic diver Tom Daley after he was knocked out of 10m platform dive in the semifinals and J.K. Rowling was there to have his back.
Along with J.K. Rowling, there were numerous other accounts who chimed in to give their two cents. This sparked an online argument on how to properly deal with a troll.
Here's what J.K. had to say:
After yesterday's casting news of a black Hermione Granger in Harry Potter and the Cursed Child, fans took to Twitter and began riffing on other characters in the series with different nationalities. JK Rowling even joined in to express her fondness for a few with praise and retweets.
Somebody draw these, stat!
I'm not so sure what J.K. Rowling's doing these days in the way of wrestling the blank page, taking pen to paper, etc; but dude, her ongoing Donald Trump-themed saga via Twitter has certainly got the people entertained -- Harry Potterheads and otherwise. Her whiplike wit and infectious snarkiness is keeping it light in these trying and predictably ridiculous weeks.
J.K. Rowling, in her never ending quest to become everyones "cool aunt" on Twitter, has offered up some inspiration in the form of rejection letters.
The pictured letters are both tiny and a little blurry but if you put on your reading glasses you might see that one is a polite and short dismissal and the other is apologetic and offers some helpful tips after saying "No, thank you."
This was part of a discussion where Rowling also answered questions and, as usual, offered a response to a fan that was both supportive and wise. 
See, just like everyone else, J.K. Rowling got rejected a few times before becoming an international sensation. Take away her fame and she still gets rejected every now and then.
J.K. Rowling's back at it again with the barrage of well-articulated rage Tweets, and her latest victim is the Piers Morgan. Poor Piers is having a particularly bad case of the Mondays. Might be time for someone to up and drink his lunch to numb some of the pain. Oh, and a word of friendly advice to our recent Rowling-roasted dude of the hour, Piers Morgan: don't go to the Twitter killing floor against a world-acclaimed wordsmith who has a notorious reputation for methodically, publicly, destroying Twitter aggressors that failed to fly under her radar. The odds are ever not in your favor when you're Rowling In the Deep, man. At least Morgan's son, Spencer pulled through at the end with a silencing, entirely unexpected slice of comedic relief.
“Harry Potter” author J.K. Rowling revealed that Albus Dumbledore was gay back in 2007 at Carnegie Hall, but apparently some fans still can’t seem to wrap their heads around it.
On Twitter Tuesday, a girl named Ana Kocovic reached out to Rowling and asked about the decision to make the Hogwarts headmaster a homosexual.
“Thank you so much for writing Harry Potter,” Kocovic wrote. “I wonder why you said that Dumbledore is a gay because I can’t see him in that way.”
And just like magic, Rowling responded with the most perfect tweet ever.
The girl ended up thanking her and apparently deleting all of her tweets. Her profile now says her name is Gellert Grindelwald, whom Rowling previously said was Dumbledore’s love interest.
“Amazing answer,” she replied. “Yes you are absolutely right. Such an inspiration!”
CEO of News Corp Rupert Murdoch (aka the "Lord Voldemort" of media moguls) posted a very controversial message on Friday, saying that all Muslims should be held responsible for the actions of Islamic extremists.
He also added that "political correctness makes for denial and hypocrisy."
J.K. Rowling would seem hellbent on keeping herself entertained post-Harry Potter through regularly preying upon unsuspecting Twitter personalities, or just Donald Trump all the time. Usually, she digs a bit deeper into the well of razor-sharp and unforgiving witty banter. This particular insult though, is just kind of awkward.
