When I read this, it reminded me of Truman as well:
"Down to earth. Like Harry Truman. What he says isn't all flowered up; he just says it, and it means a lot, you know."
I remember a story about how Truman used to always thank the help and even celebrated the end of WWII with the WH Staff. They remarked that in FDR's many years he had never thanked them for a damn thing, let alone talk to them.