May a Court Enjoin Arbitration as Precluded by a Prior Confirmed Arbitration Award?

[Editor’s note: Everett Cygal is a partner in the Chicago law firm of Schiff Hardin LLP and the leader of the firm’s Insurance and Reinsurance Practice Group. He is a graduate of the University of Chicago and Northwestern University School of Law (cum laude, Order of the Coif) and a member of the bars of Illinois, New York and numerous federal courts.

Catherine Masters is a litigation partner in the firm’s Chicago office. She is a graduate of the College of the University of Chicago (Phi Beta Kappa, honors), Yale University Graduate School of Arts and Sciences, and the University …