NEW YORK (CBSNewYork) — Donald Trump might want to check his old tweets before drinking a Diet Coke in public.

The presumptive Republican presidential nominee posted a photo on Instagram where he’s eating McDonald’s and drinking a Diet Coke after The Associated Press and CBS News reported that he secured the 1,237 delegates needed for the nomination.

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“Celebrating 1237!” Trump posted.

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Celebrating 1237! #Trump2016

A post shared by President Donald J. Trump (@realdonaldtrump) on

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However, Trump tweeted in 2012, “I have never seen a thin person drinking Diet Coke.”

Social media pounced on the photo.

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Trump should avoid a contested convention in Cleveland.