Only if it counted all Mexicans back to and pre-dating the Bear Flag and Lone Star Republics. As one of the posters in the article section mentioned the answer is given as not being that much. On the other hand over one million US Citizens live in Mexico half the year or more. These statistics get tiresome for mixing apples and oranges and pears and mangos. Not all Mexicans are brown skinned. Some have Russian last names. Spanish however is the predominant language of three in the Western Hemisphere followed by English and Brazilian Portuguese. French and Dutch are statistically insignificant even less than are Chinese and other Asian languages. So the important bit of information in comparing the United States of Mexico and the United States of America is language. My rule is north of the border I speak English - south I speak Spanish. But then I was self educated since the public schools abdicated that responsibility. There is a book and it's title says it all. "Distant Neighbors.," Every school child in Mexico knows the name of it's northern neighbor. What percent can claim the reverse?

Easy answer to the language question which is the lead in culture assimilation is return to a two language system. Require English for those gaining USA citizenship. Then require a second language for graduation from high school, college, or finding work with the government. Hands down the choice will be Spanish. If the schools joined the 21st century and used the Berlitz Total Immersion system it's a one week investment. But then - they don't teach English any more so that may prove a hard nut to crack.

Statistically though the Latino population is second behind the Euro-Caucasian descendents population in size. If memory serves they are over fifty percent of the population in the five or so SW states. Useful information as compared to Ann Coulter - not at her best.