HARRISBURG, Pa. - A rival Democratic Party candidate for Pennsylvania lieutenant governor this year says he plans to challenge whether Jay Paterno, the son of Hall of Fame ex-Penn State football coach Joe Paterno, met the requirements to get on the primary election ballot.

Brad Koplinski, a Harrisburg city councilman, said Friday that he has retained a lawyer to challenge Paterno's nominating petitions.

Major party candidates for lieutenant governor must submit the signatures of 1,000 registered party voters, including 100 from each of five different counties. The deadline was Tuesday to submit the signatures for the May 20 primary election.

But Koplinski's lawyer Larry Otter says Paterno's petitions won't meet those requirements. He says he'll challenge them Monday in court. Paterno, a first-time candidate, didn't immediately respond to a request for comment.