I recall an ad where guys who drink Milwaukee's Best get to spend the night with the Swedish Bikini Team.I recall an ad where a Paul Ryan double pushed an elderly woman in a wheelchair off a cliff.
Actually I recall the ultimate fear ad, an ad that still probably claims the record for sleaziest piece of campaigning ever. When LBJ ran against Barry Goldwater, he ran the infamous ad with a little girl picking daiseys, only to be obliterated by an atom bomb mushroom cloud, a sight viewers of that era were very familiar with.
More recently, Joe Biden counseled blacks that republicans planned to put them back in chains.
The difference with republican ads now is that the issues they are presenting are both very real and are being handled with criminal negligence by obama.