Answer:
Seperating 2 senates from the US and so that each senate has only one vote. Senaters were elected by state legislatures.
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Its around {5,6,or 7} I think
About one-third increase to the size of the United States. The states of Nevada, Arizona, California, Utah and some parts of New Mexico and the Gadsden purchase completes the southern parts of Arizona and New Mexico. This land is from Mexico acquired by the United States.