Comptroller Tom DiNapoli in a radio interview on Thursday would not say if he’d vote for Gov. Andrew Cuomo or actress and education advocate Cynthia Nixon in a hypothetical primary.

“It’s a secret ballot,” DiNapoli said with a laugh during a Talk-1300 interview with Fred Dicker.

DiNapoli added he believes Cuomo would likely be the stronger candidate against Nixon, who would be launching her first bid for public office. He did acknowledge Nixon would potentially have a leg up in the “post-Trump era” of celebrities running for office.

For now, a candidacy by the former “Sex and the City” star seems unlikely. It’s being boosted in part by public education advocates who have pushed Cuomo to spend more money on high-needs school districts.

DiNapoli and Cuomo have been locked in what is considered to be at best a frosty relationship.

Updated: Cuomo spokesman Rich Azzopardi responding, taking aim at Dicker in a statement.

“I didn’t know Dicker still had his show,” he said. “That’s adorable.”

Reached by email, Dicker responded, “Cuomo’s notoriously nasty messenger boy may claim he’s not aware of my radio show but then again didn’t Cuomo claim not to be aware that he was responsible for the New York City subway and commuter rail system?”