PGA Tour golfer Scott Piercy has come under fire for an anti-gay meme he posted to social media about former South Bend, Indiana Mayor Pete Buttigieg. At least three of his sponsors have cut ties with him over it.

This past Monday, Piercy, 41, shared a meme on Instagram about Buttigieg ending his presidential primary campaign that said, “PETER PULLS OUT EARLY FROM BEHIND.”

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The meme showed an image of Pepe the Frog, a cartoon character associated with the alt-right and white nationalism, speaking on behalf of “QNN,” a reference to QAnon, a rightwing conspiracy theory about a supposed “deep state” plot against Donald Trump. In a separate post, he said he believed in QAnon.

Piercy’s followers on social media wondered if his posts violated the PGA Tour’s ban on “conduct unbecoming of a professional.”

By Tuesday, Piercy had issued an apology statement on social media.