From Yard Signs to the Digital Age: How Multimedia Has Transformed Political Advertising

The United States has had a long, long history of political advertising with roots that date back to the 1860s. Believe it or not, prior to this era, it was considered inappropriate for politicians to ask people to vote for them. 

They did not travel on a campaign trail. They did not spew slander at other candidates from behind a podium. They did not debate in front of massive audiences. Instead, any type of advertising and marketing was left up to the people.