Sarah Palin joined the impeachment calls on Tuesday, which could mean that the former Alaska Governor has been feeling neglected. She is following the talk radio hosts and obscure authors who are trying to increase audience share or sell books by posing as Mr. Obama’s loudest opponents.

Mrs. Palin immediately received the media fillip she wanted, especially from MSNBC and the left-wing websites that want to portray the fading GOP star as a conservative leader. Progressives would like nothing better than for Republicans to try to impeach Mr. Obama, so they could scare up otherwise demoralized Democratic voters to come to the polls this November.