Kremen v. Cohen

When a federal court certifies a case to a state supreme court, it draws from a limited reservoir of comity. Certifying the case shifts the difficult work of deciding it to the state court, which is often so busy keeping its own house in order that it *1044scarcely has time for our overflow laundry. Certification also burdens litigants, forcing them to reargue the case in a different forum — a process that is costly and full of delay. None of the parties or amici in our case has so much as hinted that we should certify; Kremen explicitly urged us not to, citing the many years already spent in…