For example, Folbre notes that men constitute more than 71% of the workforce in manufacturing (which was hit hard in the recession, and also hit with outsourcing to lower cost labor countries, increased automation, and increased foreign trade) and they make up less than 25% of the workers in health and education services (where jobs have risen slowly, but steadily).

FORBES: The Declining Demand For Jobs Men Have Traditionally Held

Another involves trade policy, where economic populists in the party are less friendly to expansion of free trade and more concerned about U.S. workers under pressure from foreign competition.

WSJ: Democrats Expand Majorities in Congress