Plame accused Vice President Dick Cheney and several former high-ranking administration officials of revealing her identity to reporters in 2003. She and her husband, former Ambassador Joseph Wilson, say that violated their constitutional rights.

A federal judge dismissed the case last year on largely procedural grounds. The U.S. Court of Appeals for the District of Columbia Circuit upheld that ruling Tuesday.

The lawsuit named former presidential adviser Karl Rove, as well as Cheney's former top aide, I. Lewis "Scooter" Libby.