Former FBI General Counsel James Baker said on Monday he expects the Justice Department inspector general to find "mistakes" committed by the bureau in its handling of the Trump-Russia investigation.

Inspector General Michael Horowitz is examining the Justice Department's and FBI's compliance with legal requirements as well as policies and procedures in applications filed with the U.S. Foreign Intelligence Surveillance Court related to onetime Trump campaign adviser Carter Page.

Baker, who admitted last week the inspector general makes him "nervous," said the government watchdog will probably find some errors.

"The inspector general is looking at everything we did," Baker said on CNN. "If the IG usually finds mistakes that we made, so I expect him to find mistakes this time."

Baker said last week at an event in Washington, D.C., that he took a leading role in overseeing the FISA warrant applications to obtain the authority to spy on Page. Baker said on Monday he does not believe there was any intent from the people he worked with to do "anything wrong or illegal," including politically motivated spying.

Baker was appointed FBI general counsel in January 2014 and reassigned by FBI Director Christopher Wray in December 2017. Last year, it was reported that Baker was resigning, and since has written for Lawfare and joined the R Street Institute.

Attorney General William Barr has said he expects Horowitz to complete his investigation in late May or June. A particular issue in the investigation is the FBI's reliance on an unverified dossier in the FISA warrant application process.