Proposing an amendment to the Constitution of the United States to provide that new States may be admitted to the United States upon a concurrence of two thirds of each house of Congress.
H.J.Res. 99 proposes a constitutional amendment that would change how new states can be admitted to the United States. Currently, the Constitution allows Congress to admit new states by simple majority vote in each chamber, but this amendment would require a two-thirds majority in both the House and Senate instead. The amendment would affect any future effort to add states to the union, making the process more difficult by requiring a larger consensus. If approved by Congress and ratified by three-fourths of state legislatures, the amendment would become part of the Constitution. The resolution was introduced in June 2025 and referred to the House Judiciary Committee.
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