In a series of motions filed May 19, indicted Philadelphia District Attorney Seth Williams asked the judge overseeing his corruption case to dismiss the latest charges filed against him.

Williams pointed to the U.S. Supreme Court’s decision in the case of former Virginia Gov. Robert McDonnell, in which the justices narrowed the definition of an “official act” done for a bribe and made it more difficult for prosecutors to bring bribery charges against public officials, in his bid to chip away some of the newest fraud charges against him.