Sources told the newspaper that the FBI covertly recorded comments made by a suspect in a corruption case. In the recordings, the suspect discussed deals the Clintons allegedly made, sources told the Journal.
The newspaper reported that FBI agents who listened to the recordings thought the allegations were worth investigating and wanted to pursue a case. Sources told the Journal that prosecutors, however, felt the recordings were "worthless hearsay" and not sufficient evidence as the suspect didn't work for the Clinton Foundation.
The report follows FBI Director James Comey's letter to Congress in which he disclosed that the bureau had discovered new emails that may or may not be relevant to its investigation of Hillary Clinton's handling of classified information.
Read the full report in The Wall Street Journal.