Rowling and Morgan’s argument first kicked off when the former journalist appeared on Real Time with Bill Maher to defend the impact of Trump’s presidency.

During the show, the Good Morning Britain presenter refused to refer to Trump’s recent travel ruling as a “Muslim ban”, leading to a bitter exchange with Australian comedian Jim Jefferies.

In the end, Jefferies became so frustrated that he told Morgan to “f**k off”.

And naturally Rowling – who’s made no secret of her distaste for Trump’s travel ban – was delighted.

JK Rowling humiliates Piers Morgan after he falls headfirst into her Twitter trap