In Terrett and Others v. Taylor and Others, the Supreme Court of the United States ruled that a Virginia statute granting perpetual rights to land was unconstitutional. The case involved two parties: William Terrett, who had been granted a tract of land in 1790 by an act of the General Assembly of Virginia; and John Taylor et al., who were claiming title to part or all of this same tract under another act passed by the General Assembly in 1806. The court held that while it is within Congress’s power to grant exclusive legislation over certain lands, such grants must be made with clear language indicating an intent for them to be permanent or irrevocable. In this case, however, there was no indication from either act that they were intended as anything other than temporary grants subject to repeal at any time by future acts of legislature. Therefore, since both acts could not stand together without violating principles established in Article I Section 10 Clause 1 (the Contract Clause)of the Constitution which prohibits states from passing laws impairing contractual obligations between individuals without due process , only one could prevail - namely William Terrett's original grant - thus rendering void any subsequent attempts at appropriation through legislative action alone .

In Terrett and Others v. Taylor and Others, the Supreme Court ruled that a deed of trust was not valid because it did not meet the requirements of an act passed by Congress in 1796. The dissenting opinion argued that although the deed may have been invalid under federal law, it should still be considered valid according to Virginia state law. The dissenters argued that since there was no conflict between federal and state laws on this issue, then Virginia's laws should take precedence over any conflicting federal regulations or statutes. Furthermore, they contended that if Congress had intended for its statute to supersede all other applicable laws then it would have explicitly stated so in its language. Ultimately, the majority opinion held sway but this case serves as an example of how states can sometimes assert their own authority when faced with conflicting interpretations from higher levels of government.