populism

populismi puhekieltä A political doctrine or philosophy that proposes that the rights and powers of ordinary people are exploited by a privileged elite, and supports their struggle to overcome this.
puhekieltä The practice of appealing to the interests of the common people.
2006, Prasanta Chakravarty, Like Parchment in the Fire (page 104)

It is not crass populism or majoritanianism that ratifies the legitimacy of the polity or the administration.