J.K. Rowling and Stephen King join forces to troll Donald Trump

For a long time now, both J.K. Rowling and Stephen King have been waging their own private Twitter wars against Donald Trump.

Look: Here's a selection of J.K. Rowling's most brutal Trump burns, and here are some of Stephen King's. They've practically turned trolling the president into an art form.

Nowadays, though, they're pooling their resources.

It started earlier this week, when Stephen King discovered he'd been blocked by Trump -- and Rowling stepped in to lend a hand.

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Well, guess what? J.K. Rowling has been true to her word.

On Thursday afternoon, she tweeted King with the following screengrab:

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"A sliding scale of Annie Wilkes to Cujo". Brilliant.

At the time of writing we're still waiting on King's response, but frankly it's just a matter of time...