Mr. Rich has sought to block access to some of his legal papers by citing attorney-client privilege.

However, the Speaker refused television cameras in the House citing parliamentary privilege.

In refusing to answer further questions, the lawyers cited attorney-client privilege, the ruling said.

Presidents have cited executive privilege in an effort to keep private documents secret, saying that overwhelming need for them must be demonstrated.

She refused to tell investigators anything, citing lawyer-client privilege.

Nixon refused to release them, citing executive privilege.

The law firm never said what it had found, citing lawyer-client privilege.

Martin signed a special certificate preventing the release of information about these trips, citing "Parliamentary privilege".

They refused, citing privilege under the Press Clause, and were held in contempt.

The president refuses, citing "executive privilege" - a term, by the way, absent in the text of the Constitution.