What did the DOJ Inspector General find about FBI FISA applications in the Russia probe?

Checked on January 3, 2026
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Executive summary

The Justice Department Inspector General, Michael Horowitz, found that the FBI had a proper legal and factual basis to open the Crossfire Hurricane counterintelligence inquiry in 2016 and that the probe was not launched due to political bias, but his review identified at least 17 "significant errors or omissions" in the four FISA applications seeking surveillance of Carter Page and serious breakdowns in the FBI's FISA process and supervision [1] [2] [3].

1. What the IG said about the opening of the Russia probe

Horowitz concluded the FBI had proper predication to open the investigation in July 2016 — meaning the bureau’s initial decision to investigate possible links between the Trump campaign and Russia was legally and factually justified — and the report found no documentary evidence that political bias motivated the opening of Crossfire Hurricane [1] [4].

2. The scale and character of FISA application problems

The OIG documented at least 17 material errors and omissions across the initial FISA application and three renewals targeting Carter Page — described in other outlets as seven significant inaccuracies in the first application and 10 more across renewals — including failure to include exculpatory information from another U.S. government agency and omissions of consensually monitored statements that undercut allegations against Page [5] [6] [3].

3. Specific misconduct and procedural failures the IG highlighted

Among the most striking findings, Horowitz reported that an FBI lawyer is suspected of altering an email to make it appear a separate agency had said Page was “not a source,” an alteration the IG flagged as contributing materially to a supervisor’s approval of a FISA renewal [7] [6] [3]. The report also criticized repeated reliance on Christopher Steele’s reporting without adequate corroboration and noted the Crossfire Hurricane team did not investigate who funded that research, even after receiving information that should have raised doubts about parts of it [8] [3].

4. Management, supervision, and chain-of-command failings

Horowitz framed many of the errors as symptoms of systemic supervision and management breakdowns: three separate, hand-picked teams made basic and fundamental mistakes on one of the bureau’s most sensitive investigations, raising “significant questions” about how the FBI chain of command managed FISA work and about whether the Office of Intelligence and senior officials were sufficiently briefed [9] [10] [3].

5. Outcomes, reactions, and what the report did not conclude

The IG’s findings prompted internal DOJ and FBI reforms — more than 40 corrective actions were reported by the FBI — and led to further scrutiny by the FISA court and other oversight actors; importantly, Horowitz did not conclude the errors reflected political bias or intentional misconduct as the sole cause, though he documented suspected document alteration and serious procedural lapses [1] [7] [2]. Attorney General William Barr and some Republican lawmakers described the report as evidence of abuse of the FISA process and pressed for further probes, while legal and civil-liberty analysts warned the report shows structural privacy and oversight vulnerabilities even where the underlying investigation was properly predicated [11] [12] [8].

6. Broader context and limits of what the IG reviewed

Horowitz’s review focused narrowly on the FISA applications and aspects of Crossfire Hurricane; it did not overturn the broader conclusions of the Special Counsel about Russian interference, and several commentators and legal analysts stressed the IG’s findings about process do not negate documented Russian efforts or related criminal charges that arose from parallel inquiries [13] [12]. The report therefore sits at an awkward intersection: it validates the investigation’s start, exposes deep procedural failures in surveillance applications, and fuels sharply different political narratives about whether the errors were systemic incompetence, isolated misconduct, or something requiring still-more scrutiny [2] [9] [11].

Want to dive deeper?
What specific corrective actions did the FBI implement after the Horowitz FISA report?
How did the FISA court respond to the IG’s findings and what changes did it order?
What did later probes (e.g., John Durham) conclude about the origins of the Russia investigation and FISA usage?