The mayor of Newark on Tuesday sued New Jersey’s top federal prosecutor Alina Habba over his arrest last month outside an immigration detention facility in his city, accusing her of false arrest, malicious prosecution and defaming him to advance her political agenda.

Newark Mayor Ras Baraka is suing District Attorney Alina Habba over his arrest last month outside of a prison being transformed into a detention facility.

The Newark mayor had trespassing charges dropped last month after he and other lawmakers were accused of storming a New Jersey DHS facility in May.