Again, if difficulties arise in the levying of import duties which have been voted by Congress, the Federal court must decide the case, because it arises under the interpretation of a law of the United States.
Auzitegi federal batera joan behar da, erasorako bidea Estatu Batuetako legeetatik sortzen baita. Kongresuak inportazio-tasa bat ezartzen du. Arazoak sortzen dira tasa honen bilketarako.