Whether Lt. Gov. Brian Benjamin misused public funds is again in question as Gov. Kathy Hochul’s handpicked running mate campaigns for a full term.

New reporting revealed federal investigators issued subpoenas to shed light on whether Benjamin played a role in a fraudulent donation scheme during his city comptroller bid last year and whether he improperly steered grants to his Harlem district when he was state senator.

The lieutenant governor has not been charged or accused of wrongdoing.

The Daily News reported that state Senate and other staffers were subpoenaed last year in relation to funds distributed by the State and Municipal Facilities Program.

The New York Times reported staff were subpoenaed in relation to the federal indictment of Harlem landlord Gerald Migdol, who allegedly illegally secured public campaign funds for Benjamin.

A Southern District of New York spokesperson declined to comment.

A Benjamin campaign spokeswoman gave NY1 a statement first offered in November, when Migdol was arrested, noting Benjamin and his campaign are not accused of a crime, are cooperating with investigators and have relinquished the campaign contributions in question.

Primary opponents pounced on Benjamin and Governor Hochul, who are running as a ticket.

“I think it speaks to a sort of looseness with the rules when really if the public entrusts you with their lives, you should make every effort to be as correct as possible in your behavior,” said Ana María Archila, a lieutenant governor candidate challenging Benjamin alongside gubernatorial candidate Jumaane Williams.

Another Hochul challenger, Tom Suozzi, said “Kathy Hochul handpicking a running mate who had a pending ethics complaint ... tells us a lot about her judgement and lack of executive experience.”

There have been numerous recent instances where Benjamin’s spending and record-keeping have gotten him in trouble.

At an unrelated Manhattan news conference in early March, he explained his use of both campaign funds and taxpayer-reimbursed expenses from the same travel, as reported by the Times-Union.

“What happened was when I was in the State Senate, there were times where I had campaign activity that happened right on my way to Albany, before I went to Albany and I paid my gas on the activity that happened beforehand,” Benjamin said then, adding: “I have reimbursed the campaign for every single gas expense.”