This Clause affords Congress the power to admit new states. Most of the discussion at the Constitutional Convention focused on the latter, limiting, portion of the Clause—providing that new states can be carved out of or formed from existing states only with the consent of those existing states. Some Convention delegates objected to this provision on the ground that, because several of the existing large states laid claims to vast swathes of western territories and other lands, those states would never consent to form new states in those territories, and thus the large states would only become larger and more powerful over time. But the prevailing sentiment at the Convention was that a political society cannot be split apart against its will.
While the consent requirement garnered the most discussion at the Framing, it has come into play only a handful of times in American history, such as when Massachusetts consented to the formation of Maine. Most intriguingly, Virginia was treated as consenting to the formation of West Virginia at the outset of the Civil War, even though it was actually a breakaway, pro-Union province of Virginia that declared itself to be the lawful government of Virginia and then purported to give “Virginia’s” consent to the creation of the new state of West Virginia—which was to occupy that same breakaway corner of Virginia.
The opening portion of the Clause—granting Congress the general power to admit new states—has played a far more significant role in American history. Only thirteen states ratified the Constitution pursuant to Article VII. All of the remaining thirty-seven states were subsequently admitted to the Union by Congress pursuant to this power.
This power is thus an important one. And yet the Constitution provides almost no guidance as to how Congress should exercise it, nor does the Constitution impose any other express limits on it. Neither is there much guidance in the Framing history about its meaning or scope. Accordingly, much of the practical meaning of the Admissions Clause must be drawn either from caselaw interpreting the Clause or from the practice of Congress in admitting states, beginning with Vermont in 1791 and ending with Alaska and Hawaii in 1959.
New states have generally been admitted after a period of territorial government, during which Congress and the President have broad authority pursuant to the Property Clause, also in Article IV, Section 3. An Act of Congress established the territorial government, often giving greater self-government (e.g., in the form of an elected territorial legislature) as the territory’s population increased over time. Some states, however, such as California and Texas, have been admitted without ever being territories.
The Admissions Clause provides that admission of a state requires at least one Act of Congress. However, Congress has often followed a more complicated process. For many admitted states, Congress first passed an Enabling Act, which authorized the population of a territory to convene a constitutional convention to draft a constitution for the new proposed state, and to apply for admission to Congress. Often in the Enabling Act, Congress specified a range of conditions that the proposed state had to meet in order for admission to occur. These conditions varied widely across time and states. For example, some states were precluded from allowing polygamy or slavery, and some states were forced to practice religious toleration or to afford civil jury trial rights. Once the proposed state constitution was drafted, it was sent to Congress, which then decided whether to pass an additional act or resolution admitting the state. One variation in the Enabling Act process involved Congress delegating the final approval process to the President.
The primary issue that the courts have wrestled with pursuant to the Admissions Clause is the extent to which it limits the power of Congress to impose the aforementioned conditions on, or otherwise to limit the sovereignty of, admitted states. Even though the Constitutional Convention rejected a provision requiring Congress to admit all new states on an equal footing with the original states—thus seemingly leaving the issue to the discretion of Congress—the Supreme Court has nonetheless read such a requirement into the Admissions Clause. And Congress, despite its frequent imposition of conditions, has in fact included language in virtually every state’s admission act providing that the state is “admitted into the Union on an equal footing with the original States in all respects whatsoever.”
The Equal Footing Doctrine was first constitutionalized in Pollard’s Lessee v. Hagan (1845), where the Supreme Court held that as a matter of basic sovereignty all states have ownership of the beds of their navigable waterways (submerged lands under major rivers and lakes), and that, because newly admitted states must be on an equal footing with the existing states, newly admitted states obtained these same ownership rights when they joined the Union. Most famously, the Supreme Court applied the Equal Footing Doctrine in Coyle v. Smith (1911) to strike down a condition in the Oklahoma Enabling Act that restricted the ability of the newly admitted state to move the location of its state capital. The Court held that, since Congress would not have the power to restrict an existing state’s decisions about where to locate its state capital, under the Equal Footing Doctrine, Congress could not control where a newly admitted state could locate its state capital either.
The Equal Footing Doctrine applies only to matters of state sovereign authority, not to economic, geographic, or ecological conditions that nonetheless may give some states more resources than other states. For instance, the fact that the federal government owns more than 80 percent of the land in Nevada does not mean that Nevada was not admitted on an equal footing with other states, such as New York, where the federal government owns less than one percent of the land. United States v. Gardner (9th Cir. 1997). Nor does the Equal Footing Doctrine require the federal government to surrender ownership of lands it owns within a newly admitted state, and it does not affect the broad power that the federal government has to regulate those lands under the Property Clause.