"This was the dirtiest campaign in our history, with form replacing content," he said.

Hamilton was a leader of the forces against him in what one of tonight's historians calls the country's dirtiest political campaign.

"It says they're getting into a dirty campaign because they're scared," he said.

It started a "dirty dairying" campaign to highlight the effect of farming on water quality.

The news will fuel claims of a 'dirty tricks' campaign against Diana.

But she could get away with it, frankly, because she didn't look like the kind of person who would run a dirty campaign.

This is a dirty campaign, as self-employed drivers continue to be covered by the Regulation on driving times and rest periods in any case.

"Davis always knows how to run a dirty campaign but he doesn't know how to run a state."

He's going to start a dirty campaign now.

I know everybody said this was a dirty campaign.