Distinguished Professor of Medicine at UCLA, presents fascinating research analysis of his new book. Over half of the post-millennial generation born in California since 1997 is Latino. As this generation enters adulthood between 2020 and 2040, it will by sheer force of numbers influence the course of daily life in California. Latino post millennials across the county are creating an American identity build not on complete assimilation or unyielding separatism, but rather on a vibrant, distinctive regional identity, constructed on their definitions of what it means to be American.