endorsed the idea of implicit limits on the United States constitutional amendment power. argues that an amendment that abolishes free speech would be unconstitutional. argues that an amendment that entrenched white supremacy and reintroduced
segregation would be unconstitutional.The ability and willingness of the
Supreme Court of the United States to overturn any
constitutional amendment is questionable. The
Constitution of the United States is codified, and
Article V allows all amendments except for the condition that "no State, without its Consent, shall be deprived of its equal Suffrage in the Senate". Amendments to the Constitution are extremely rare; the last to be drafted was the
Twenty-sixth in 1971, and the last to be adopted was the
Twenty-seventh in 1992, which was originally drafted in 1789, but failed ratification and was forgotten. No amendment to the Constitution has ever been ruled unconstitutional by a court. Unlike the
uncodified constitutions of many other countries, such as
Israel and the
United Kingdom, the codified US constitution sets high standards for amendments, but places
few limits on the content of amendments. Nevertheless, some legal scholars support the possibility of unconstitutional amendments. The idea of an
unconstitutional constitutional amendment has been around since at least the 1890s—it was embraced by former
Michigan Supreme Court Chief Justice Thomas M. Cooley in 1893 and US law professor Arthur Machen in 1910, Manchen arguing that the
Fifteenth Amendment might be unconstitutional. Cooley insisted that amendments "cannot be revolutionary; they must be harmonious with the body of the instrument". He argued that "an amendment converting a
democratic republican government into an
aristocracy or a
monarchy would not be an amendment, but rather a
revolution" that would require the creation and adoption of a new constitution. In a 2015 article, Yaniv Roznai argues that the more that the expression of the
secondary constituent power (as in, the constitution-amending power) resembles the expression of a democratic
primary constituent power, the less that it should be bound by limitations (whether explicit or implicit), and vice versa—with the less that the
secondary constituent power resembles the
primary constituent power and the more that the
secondary constituent power resembles an ordinary
legislative power, the more that it should be bound by limitations (whether explicit or implicit). A variation of this argument was also endorsed in 2013 by Carlos Bernal-Pulido. Meanwhile, in a 2018 review of Yaniv Roznai's 2017 book about unconstitutional constitutional amendments, Joel Colón-Rios argued that the
unconstitutional constitutional amendment doctrine should only apply in jurisdictions where the constitution-making process was indeed both strongly democratic and strongly inclusive—something that Colón-Rios pointed out is not actually true for the processes by which many currently existing constitutions were made and ratified. In the same article, Colón-Rios wondered whether jurisdictions with constitutions that lack a
legal mechanism to resurrect the
primary constituent power should categorically reject the
unconstitutional constitutional amendment doctrine since the use and invocation of this doctrine in these jurisdictions would mean that certain constitutional principles there would only be capable of being changed or altered through revolution. Otherwise, according to Stone, the concept of a constitution would lack any meaningful sense. However, Stone is much more critical of Roznai's claim that constitutional changes that alter a constitution's identity while allowing it to remain a constitution—simply a different constitution from what it was when it was first created—are unconstitutional. After all, Stone argues that a particular constitution's extreme malleability—and thus a particular constitution's rejection of the
unconstitutional constitutional amendment doctrine—can
itself be considered a part of this constitution's identity, thus making it improper for courts to alter it. Stone also argues that the question of whether a constitutional amendment is indeed unconstitutional should not only be decided based on whether the constitution-amending process was democratic, inclusive, and deliberative, but also on whether the constitution-making process was as democratic, inclusive, and deliberative as the constitution-amending process was. Stone uses her home country of
Australia as an example where the constitution-amending process was more democratic and thus a better representation of the people's will than the constitution-making process was since at the time that Australia's constitution was written back in the 1890s,
Australian Aborigines and women were both excluded from the Australian constitution-making process—whereas both of these groups are full participants in any 21st century Australian constitution-amending process. Stone argues that, in cases where the constitution-amending process is more democratic and inclusive—and thus more legitimate—than the constitution-making process is, it would indeed be permissible to enact even transformational constitutional changes through the constitution-amending process (as opposed to through a new constitution-making process). ==National views about this theory==