Call it Nationalist Populism, It has “Trumped” Politics on Both Sides of the Pond. Populism claims to promote the "will of the people," standing in opposition to an enemy, often embodied by the current system - aiming to "drain the swamp" or tackle the "liberal elite".
Nationalism begins from the same premise that working people are not doing so well, but instead of blaming the rich at home, it focuses on globalization, the outsourcing of jobs, unfair trading practices and free trade & immigration.