My first year teaching Civics, I was searching for a resource on the internet that had a variety of examples of propaganda using campaign commercials. What I stumbled across was from the Museum of the Moving Image and its 'The Living Room Candidate' collection of what I assume is almost every Presidential campaign commercial dating back to the 1952 campaign.
The site has become more functional since I last visited way back then but it is still a really cool look at the history of our elections through campaign commercials...
My favorite? Check this out from 1952:
I would totally vote for Ike!