The major policy point of contention is border policy with Mexico. Even in just the last 12 months, the left has become more enamored with open borders. Bernie

The major policy point of contention is border policy with Mexico. Even in just the last 12 months, the left has become more enamored with open borders. Bernie was chastised during the primaries for making some statements in support of immigration restriction, a reflex from an old left veteran. It's hard to imagine a Democratic candidate making that mistake today. With relatively free flow of people across the southern border, birthright citizenship, and family reunification, Democrats won't need white working class votes much longer. For a certain segment of the white working class and sympathizers, they see this as an existential threat to their political power. They also compete with freshly arrived Mexican immigrants directly in the labor market, who tend towards working-class professions. Migration across the southern border would have to be paused for some time to reunify a fractured national identity and reduce the demand for Trump-type nationalists. But as long as the left sees the potential for permanent electoral victory with sufficiently rapid demographic change, that's unlikely to happen. The sad bottom-line is that race-oriented politics is likely to be a growing force over the next decade.