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Texas did.
February 1848
Shot
You don't say who "these groups" are but the correct answer is California, Nevada, and Utah and parts of Arizona, Colorado, New Mexico, Utah, and Wyoming.
After the Mexican-American War (1846-1848) Mexico lost several territories, including present-day California, Nevada, Utah and part of Colorado as well as most of northern New Mexico and Arizona. Also at the end of the war Mexico was forced to cease any attempt on reclaiming Texas. This is known as the Mexican Cession (1848).
James K. Polk, who gained the land for the U.S. as part of the Treaty of Guadeloupe Hidalgo after the Mexican War.
The Mexican Cession was the name granted the region of the modern day Southwestern US that Mexico gave up to the US. Before this, it was considered another part of Mexico.
California and New Mexico
california, your mom, and santa
The "Mexican Cession" was the vast area of land constituting most of the present Southwest United States, from California eastward to New Mexico. The lands were ceded to the US in 1848 under the Treaty of Guadalupe Hidalgo that ended the Mexican-American War (1846-1848). The cession amounted to more than 1/3 of the total area of pre-war Mexico, including all or part of the current US states of California, Nevada, Utah, Arizona, and New Mexico. The US settlement to Mexico totalled $18.5 million. Five years later, the US purchased a much smaller disputed border area for $10 million in the Gadsden Purchase.
The United States received the states of California, Utah, and Nevada, as well as portions of New Mexico, Wyoming, Arizona, and Colorado as a result of the Mexican Cession. The Gadsen Purchase gave the southern portion of Arizon to the US.
Nevada was part of California during the Mexican War (1846-1848). And California was part of Mexico.