( May 22, 2026, 9:44 AM EDT) -- SAN FRANCISCO — A general contractor’s insurer urged the Ninth Circuit U.S. Court of Appeals to reverse a lower court’s judgment in favor of a subcontractor’s insurer, arguing that because the general contractor is an additional insured under the subcontractor’s policy, the subcontractor’s insurer had a duty to defend the contractor in an underlying suit against the contractor for damages allegedly caused by the subcontractor’s work....