DES MOINES, Iowa (CN) — The Iowa Office of the Governor and the state’s largest newspaper asked an Iowa state judge on Friday to decide if the office can claim executive privilege to keep four emails exchanged by staffers from being released. The Register argues that no Iowa court has recognized the existence of an executive privilege for the governor. Otherwise, every document in the governor’s office would be exempt from disclosure. The four emails — which have been read by the judge — are identified by the governor’s office as “media prep” messages. The governor’s office said they turned over over 800 pages of documents, but withheld the four emails they said contained private advice.