Other forms: populists
Use the noun populist to describe a person — especially a politician or activist — who works to give regular working people a voice in their government.
In politics, the word populist refers to someone who puts ordinary people's rights above those of the wealthy and powerful. It is basically a synonym of democrat, which when spelled with a lower-case d is simply a person who believes in democratic principles of rule by the people, freedom, and equality. The root of populist is the Latin word for "people," populus.