(Photos: Daniel Maurer)

(Photos: Daniel Maurer)

First that kid put his fist through a $1.5 million painting, and now this. Someone scratched their tag into Keith Haring’s self-portrait on Astor Place, like Donald Trump churlishly, childishly scrawling his signature all over everything good and decent. Take a closer look.

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We’d say Keith is rolling over in his grave, but he was no stranger to defacing things — and he seems to be doing just fine over on the wall of 328 Bowery, where he’s part of a new window display of Ricky Powell’s photos. That’s him (not to be confused with the hologram of him) buying the photographer a beer at Irving Plaza in 1986.

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Maybe the tag is revenge for that time the Haring sculpture kicked someone in the head?