Federal Insurance Company v. St. Paul Fire and Marine Insurance Company/st. Paul Mercury Insurance Company

St. Paul Fire and Marine Insurance Company/St. Paul Mercury Insurance Company (St. Paul) appeals the district court’s sum mary judgment order requiring St. Paul to pay Federal Insurance Company (Federal) for the defense costs incurred by Federal in defending American Angus Association (Angus) in a defamation and antitrust lawsuit. We affirm.

When the alleged defamation and antitrust violation occurred, Angus held liability insurance policies from both St. Paul and Federal. St. Paul’s policy insured Angus against defamation liability, and Federal’s policy insured Angus against defamation and…