Original sentence: Commentators from the Weekly Standard  and other publications have raised questions about the authenticity of the memo.The Washington Post says that it neither implied that the memo originated from a Republican source nor that it was circulated by Republicans, though it did in fact make these assertions when it published the story by reporters Mike Allen and Manuel Roig-Franzia on its wire service on March 19, 2005.The claim was corrected before publication of the print version on March 20, 2005
Edited sentence: After being widely circulated, the unsubstantiated claim was corrected before publication of the print version on March 20, 2005.Howard Kurtz of the Washington Post has reported the controversy about the memorandum's authenticity.Kurtz and the Washington Post reported: "The version of the article published by the paper did not specify the authorship and noted that the memo was unsigned.The Washington Post has backed away from the story, claiming that it neither implied that the memo originated from a Republican source nor that it was circulated by Republicans, though it did in fact make these assertions when it published the story by reporters Mike Allen and Manuel Roig-Franzia on its wire service on March 19, 2005.The authorship remains unknown.Various commentators from the Weekly Standard  , Slate , National Review  have raised questions about the authenticity of the memo