Former Deputy Director of the FBI Andrew McCabe told the “Today” show on Tuesday morning that he plans to bring a civil lawsuit against the Department of Justice over his firing, which was directed by former Attorney General Jeff Sessions just hours before he was set to retire from a 20-plus year career in the agency.

During the interview with “Today’s” Savannah Guthrie, McCabe criticized the inspector general report that fueled his removal, which suggested he lied about leaks to the media. He said it was part of his motivation for suing the department.

“I read that report very closely myself, I’ve been writing and reading investigative reports for over 20 years and that report was unlike anything I had ever read before,” he said. “So I have big problems with that report, I disagree with the conclusions they drew and that is something I’ll be raising in a civil lawsuit that I’ll be bringing against the Department of Justice.”

McCabe didn’t give further details, but said he was “about” to file the lawsuit and said he believes he was “fired because I opened a case against the President of the United States.”