What significant political change emerged in New Mexico due to the Treaty of Guadalupe?

The Treaty of Guadalupe Hidalgo ended the Mexican-American War in 1848 and transferred New Mexico and other territories from Mexico to the United States. This shifted the boundary between the two countries and brought New Mexico under U.S. control. So the significant political change was the change in the U.S.-Mexico border; New Mexico did not become an independent nation or return to Spanish rule.

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