Transparency advocates Tuesday filed an open records suit after Newark, New Jersey, city officials refused to make public details of the city’s proposal to serve as a new, second headquarters for Amazon.

Steven Wronko sued the city Tuesday in Essex County Superior Court to reverse a records custodian’s decision denying his request to obtain documents relating to Newark’s attempts to woo Amazon. The request also seeks information about the city’s contracts with marketing companies and other vendors that were hired to help with the application.