"The best signs are that all of the candidates are running positive ads, and in their debates, they have kept the focus on Whitman."

"I would like to see them put up some positive ads," she said.

We intend to do a lot of positive ads.

Every candidate must remember in developing his positive ads that he or she faces a dual threat.

Feingold's first television ad was a positive ad released in March.

But if the Republican went negative, the Democrat's positive ads lost their impact.

Have you seen one positive ad about Bill Clinton?

The study found negative and positive ads to be equally informative.

We could lower the price of positive ads, but that would free up more money for negative ads.

"Too bad he voted for higher taxes," they might say after seeing both positive and negative ads, "but at least he's good on utility rates."