ET,
I believe that, for whatever reasons (populism probably) Lincoln and the others made a great effort to try and convince the people that they were essentially continuing the legacy of the founders, rather than imposing some radically new ideas.
I’m currently taking a course in Mises Academy from Tom DiLorenzo about Hamilton, Clay, and Lincoln and he pretty convincingly argues that Lincoln and the Republicans were simply continuing the same nationalistic policies that Hamilton and Clay brought about before them.