Joseph P. Bradley, Claflin v. Houseman Assignee — Opinion of the Court
“ Some have supposed that wherever the Constitution declares that the judicial power shall extend to 'all cases,'-as, all cases in law and equity arising under the Constitution, laws, and treaties of the United States; all cases affecting ambassadors, &c.,-the jurisdiction of the Federal courts is necessarily exclusive; but that where the power is simply extended 'to controversies' of a certain class,-as, 'controversies to which the United States is a party,' &c.,-the jurisdiction of the Federal courts is not necessarily exclusive. ”
