justice department. he says it is a clear sign she had it out for conservatives. >> these e-mails really show lois lerner's political bias and state of mind. look this is a serious matter when conservatives only were targeted. progressives weren't. >> reporter: it has been more than a year since lerner came to congress and refused to answer questions. she since retired from the irs but republicans are demanding accountability and now they are renewing their call for a special prosecutor to investigate. in may, lerner was found in contempt of congress. in june, irs officials said many of her e-mails were destroyed in a computer crash. she's maintained her innocence through her attorneys but they had no comment when asked by abc news about the new e-mails. the messages that surfaced raised new questions about whether tea party groups were targeted and whether lerner's bias against conservatives was pervasive inside the agency. jeff zeleny, abc news, capitol hill. the victim of a tea party challenge will close his once