This joint resolution proposes an amendment to the United States Constitution, specifically addressing the process for admitting new states into the Union. The core provision of this amendment is to require a two-thirds concurrence of each house of Congress for any new state to be admitted. Currently, the Constitution allows for new states to be admitted by Congress, which has historically been interpreted as a simple majority vote. If ratified by three-fourths of the state legislatures, this proposed change would significantly raise the legislative threshold for future statehood, thereby making the admission of new states more challenging.