However it seems one candidate is taking an alternative route. Mike Gravel, a left-wing Democrat appears to be trying to say a great deal by saying nothing (in the below ad named 'Rock')
and almost purely using symbolism in the Youtube video 'Fire' (below). Too clever by half or a refreshingly alertnative way of getting a message across?
He is not seen as a serious contender, perhaps the ad style is symbolic of this alone or his standing is symptomatic of his rather wacky approach. It may be interesting to see this replicated.