What is fascinating is that though Sanders and Trump couldn’t be more different culturally, their programs overlap a great deal. “What right-wing people in this country would love is an open-border policy,” Sanders said recently. “Bring in all kinds of people, work for $2 or $3 an hour, that would be great for them. I don’t believe in that.” Trump’s immigration paper states that “real immigration reform puts the needs of working people first — not wealthy globe-trotting donors.”
Trump has said that there’s little daylight between them on the issue of trade, while Sanders has praised Trump’s favorable statements on single-payer health care.

The establishments of both parties have proved pitifully inept in fending off their respective nationalist and socialist insurgencies. I suspect they’ll eventually succeed. But I also suspect this is not the end of the challenge, merely the beginning.