Ideology points from town halls are based on your remaining stamina. The more stamina you have, the more you lose but u get more by going for town hall at the beginning of your go
As for FDR, not too sure about Minority Appeal, yeah he ended the Depression and began a lot of security programs. But let's not forget what he did to the Japanese after Pearl Harbor.
Late comment but Sleepy energy for Roosevelt seems inaccurate especially because of his military experience, his love of nature and outdoors, and he also liked to hunt as well. The man even took a bullet to the chest and continue giving a speech.