According to this Washington Post article, Alaska Governor Sarah Palin and Republican Vice-Presidential Candidate has invoked executive privilege to withhold emails requested by an Alaskan citizen.
I don't know Alaska law. However, if a similar problem arose in the federal realm her legal problem on maintaining the privilege is that she cc'd her husband on many of the documents. While he is the First Man of the state, he isn't a legal employee and that fact may doom her invocation of the privilege as the privilege usually stands only when the documents are internal to the government. There are some exceptions and they will, no doubt, argue that these exceptions apply to this situation.
I'm trying very hard to keep this blog non-political. However, this isn't a good sign about Palin's views on transparency in government.