Language of Campaign Ads

TV ads have played an important role in US presidential elections since the fifties. They areoften carefully crafted mini-movies created by the best talent from the advertisement world. A big chunk of the money the candidates raise is spent on buying expensive time on TV channels. 

Probably the most famous one is the 'Daisy Girl' ad, which LB. Johnson used in his campaign against Barry Goldwater in 1964. You can watch it here. 

Please watch Obama's portrait in this ad and compare it to McCain's portrait in American Values

Both campaigns use negative ads as well: How is Obama portrayed in this one from the McCain campaign? How about McCain in this one from the Obama campaign?