Regardless, the US doesn’t have an official language. And for what it’s worth, Spanish was the official language in California for a couple of centuries before the first English speakers even showed up.
The reason Texas, Arizona, New Mexico, and California are in the US rather than Mexico now is quite simply that the writ of the Spanish speakers there did no run as far as they claimed it did. The Spanish claimed CA and TX, but the Spanish - and later the Mexicans - did not effectively control immigration into that area. Hence, Mexico lost it to immigrants who did end up controlling it.
At the federal level, the United States has no official language, but 27 U.S. states and all inhabited U.S. territories, excluding Puerto Rico have designated English the official language and courts have found that residents do not have a right to government services in their preferred language.
Dec 26, 2015 - Proposition 63 declared that English is the official language of the State of California. It directed the California State Legislature to enact legislation to “preserve the role of English as the state’s common language.” HEH HEH