What Makes a Campaign Ad Effective?

I believe that in order for a campaign ad to be effective it must include the 4 aspects: emotion, persuasion, truth, and style. However I am agreeing with most people when I say that one of the most important is the emotional aspect. If a campaign ad had only provided boring repetitive information and facts then it would have  no way of effecting the viewer and the way they view the ad. The viewer will either have a positive or negative emotional outlook on the ad and this is due to the truth criteria of the ad. What I mean by this, is more than likely if an ad presents factual information and it doesn't seem to unfairly bash or single out a candidate then it will receive positive emotional feedback by the viewer. Having a viewer believe that the evidence an ad presents is truthful then it would make complete sense that the viewer has more trust in that candidate. Persuasion is another part of the criteria for analyzing a campaign ad. If the ad includes very strong message and that message is also clear for the viewer to understand, then consequently the viewer's mind will be influenced dramatically. The last aspect that makes a campaign ad great is its ability to incorporate its own unique style of presenting  message to the viewer. In the "wind surfing" ad by Bush it was clear that Bush was trying to say that John Kerry was essentially a flip flopper. What was different about this ad was its way of incorporating the music, effects, and information all together so that they all coincide with each other perfectly. Having this unique style creates a way for candidates and campaigns to catch the viewers attention, which in the end creates a memorable ad that at least one person will always recall. Therefore, a campaign ad must have all of these important aspects that have ultimately become a criteria for a ideal campaign ad.