Rep. Justin Amash, R-Mich., learned the hard way Monday that hate, hate, hating on Taylor Swift on social media never ends well for the hater.

The bad blood between Amash and Swift started Sunday when he tweeted a "No" to the question of whether Swift should be allowed to trademark her birth year, 1989, which is also the title of her last album.

Swift's Twitter fans rushed to her defense, generally with some sort of pun about how the pop star should just shake it off.

Right when it seemed like Amash was out of the woods, he responded to one comment Monday with a cheeky joke about copyright infringement.

His response prompted one follower to assume that he and Swift could never, ever get back together.

Swift currently has trademarks on the phrases "that sick beat," "'cause we never go out of style," "could show you incredible things" and "nice to meet you, where you been?"

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