The Conservatives have unveiled three new television ads directly attacking newly minted Liberal Leader Stephane Dion.
The English-language ads, which begin airing immediately and will be followed by a second series of French ads, assert that Dion is a weak leader who would take the country back to the past.
They also assert that he was a flop as environment minister, charging that greenhouse gas emissions went up and air quality went down under Dion's watch.
The ads use footage from last fall's Liberal leadership debates, including clips of Michael Ignatieff, now Dion's deputy leader, and Ken Dryden admitting that the Liberals failed to meet the Kyoto targets for emission reductions.
People deplore negative advertising in much the same way that they deplore gossip: condemn it to your face, relish it behind your back.
Now is the time to force Dion on the defensive when he has an actual record to be defensive about.