Kenneth Smukler, the Philadelphia political consultant formerly associated with retiring U.S. Congressman Bob Brady, has asked a federal judge to dismiss election law-related charges against him involving another politician.

Smukler is facing prosecution for his alleged role in paying off one of Brady’s political opponents to drop out of the 2012 Democratic primary. He has also been charged by superseding indictment with allegedly making hundreds of thousands of dollars in illegal donations to former Congresswoman Marjorie Margolies’ campaign in her failed 2014 bid to reclaim the seat, while obstructing the corresponding federal investigation.