WHEN PEOPLE CALL POLITICIANS "POLITICOS," do they mean that politicians view themselves as both a trustee and delegate?

Because I learned from school that there are several role orientations of the legislator: 1) trustee (lawmakers who see themselves as free agents; that is, they see themselves free to express their own views on matters of policy), 2) delegate (lawmakers who say that their constituency comes first in matters of public policy no matter what), and 3) politico (lawmakers who hold both the trustee and delegate roles).