It seems like all political ads are the same. We're sick of seeing commercials for Obama and Romney, yet we can barely remember what a single one is about. You can try to stand out by being innovative or controversial, or you can take the easy route and make an ad crazier than the entire population of an insane asylum. For example ...
5"Ike ... Bob"
The 1952 election was the first to see the use of TV ads, so we understand that nobody quite knew what they were doing. But it still should have been obvious to Adlai Stevenson's campaign that they needed to employ voice actors who sounded like humans, not Marvin the Martian.
Stevenson's strategists wanted to suggest that an Eisenhower administration would be controlled behind the scenes by Robert (Bob) Taft. Why they thought having their two actors repeat "Ike" and "Bob" like they were insane conjoined twins would accomplish this has been lost to history.
Richard Nixon wasn't popular with the hippie crowd, so maybe this 1968 ad was an attempt to reach out to them. Because the only way it makes any sense is if you've just dropped all the acid.