Cigna Group’s pharmacy benefit manager Express Scripts on Tuesday sued the U.S. Federal Trade Commission, alleging that the agency’s July report on the PBM industry was biased and defamatory and asking the court to order the FTC to withdraw the report.

The FTC has taken unconstitutional actions in publishing a report that ignores the evidence provided by our company and other [pharmacy benefit managers], demonstrates clear ideological bias and advances a false and damaging narrative—narrative that could harm the health care system by removing essential checks and balances which would result in higher drug prices for American consumers,