astorinoRepublican Westchester County Executive Rob Astorino on Monday in a radio interview insisted he knew little about the single, $107,900 donation to his newly constituted Reform Party ballot line that was from a limited liability company.

“I don’t know,” Astorino said on Fred Dicker’s Talk-1300 radio program when asked about the donation. “The guy apparently does live in Rockland County, but I don’t know much about it.”

The contribution came from an LLC called the Institute for Municipal Safety Research. The LLC doesn’t have any online presence and does not appear to be registered with the state.

Its address in White Plains is similar to that of the Rockland Republican committee chairman. Meanwhile, the party has used the bulk of its money — some $96,000 — to support one candidate in the Clarkstown supervisor’s race, Republican George Hoehmann.

Astorino’s campaign last year formed the ballot as the Stop Common Core Party, and re-named it the Reform Party in order to give the line broader appeal and back a variety of issues, including term limits.

Pressed on whether he vetted the contribution to the party, Astorino said he knew the donation came from someone in Rockland County.

“I did ask that question and the person is above board,” he said.

Astorino countered, too, that LLC donations have flooded to Gov. Andrew Cumoo’s campaign coffers as well as state Democrats, even as there is a push to limit their contributions. Single donors can give unlimited funds through a network of LLCs, a loophole that good-government advocates have sought to close in recent years.

“If the law is changed, I’m fine with it as long as it’s a level playing field,” Astorino said.