Yes, politicians of all political stripes have tried to appeal to the common or forgotten person in their campaigns, calling themselves their champions. While there may have been sincere ones like FDR or LBJ, recent examples like Nixon, Reagan, and Trump used this characterization more as a political line, designed to get votes and sway the gullible. Those three were never about the people. When someone says they are for the forgotten person, look at the what they are proposing and whether they are trying to divide us or bring us together. Those are better indicators that one sentence commitments to the forgotten people.

https://theconversation.com/politicians-have-long-used-the-forgotten-man-to-win-elections-103570