Correction appended, April 1

Rand Paul trolled the political world by teasing a prank Donald Trump endorsement for April Fools’ Day.

The Kentucky Senator and former presidential candidate tweeted Thursday that he would be making an endorsement Friday. And in follow-up tweets, he hinted at who that would be, typing out phrases that sound distinctly Trumpian:

But Paul confirmed Friday that it was all an April Fool’s Prank, saying that endorsing Trump would be like “endorsing entropy”:

Correction: A photo caption in an earlier version of this story incorrectly referred to Rand Paul. He is a Senator from Kentucky.

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Write to Tessa Berenson at tessa.berenson@time.com.