Fireside chats were effective during the war because if gave up where the enemy was. It helped our soldiers find them and kill them quicker, than it would of if there was no such thing as fireside chats. The other thing it was good for was keeping the public informed. If the public wasn't informed, then there was a greater chance of more areas being obliterated during the war from not knoeing the enemy was getting ready to strike.
In my personal opinion firesides chats were effective. Due to the reason that Roosevelt explained how the bank system worked and what exactly happened with your money. To further explain, the short excerpt I read clearly stated,"In other words, the bank puts your money to work to keep the wheels of industry and of agriculture turning around." Which clearly explained what your money was actually doing.
The winner of the popular vote within a state will receive all of the electoral votes. Eg. 62% of Californians voted for Hillary and Hillary got all 55 of the electoral votes.