Questione giuridica chiave
Whether the U.S. judgment was final and enforceable under Art. 25 lit. b LDIP
Decisione estratta
The challenge was inadmissible because it had not been raised before the cantonal authority.
Motivazione estratta
In public-law appeal, only arguments raised below are generally admissible; the recourse failed to show that the finality finding was contested cantonally.