(June 2, 2016, 7:09 AM EDT) -- MADISON, Wis. — An insurer told a federal court in Wisconsin on May 25 that its reinsured is asking the court to approve an arbitration umpire selection process that is not outlined in the arbitration clauses of the reinsurance agreements at issue (Employers Insurance of Wausau f/d/a Employers Insurance of Wausau a Mutual Company v. Continental Casualty Company, No. 16-cv-00205, W.D. Wis.)....