How was FDR able to sway public opinion on our role in WWII?
One of the most unique was his use of radio, his Fireside Chats. During the Depression when the country needed encouragement, he began sitting down and just 'talking' with the people in what seemed like a person to person manner. This continued during WW2 See the site below.
http://www.jiskha.com/display.cgi?id=1168193213