(February 5, 2018, 9:13 AM EST) -- PORTLAND, Ore.— The Ninth Circuit U.S. Court of Appeals on Feb. 1 affirmed a lower court’s denial of a commercial general liability insurer’s motion to compel arbitration of a coverage dispute over an underlying defamation counterclaim brought against an insured, finding that the policy’s arbitration clause was invalid under Washington law (Technical Security Integration, Inc. v. Philadelphia Indemnity Insurance Company, No. 15-35683, 9th Cir., 2018 U.S. App. LEXIS 2574)....