Dirty Tricks on the Campaign Trail

Bad news about a candidate? Look to the '08 campaigns' opposition researchers.

Dirty Tricks on the Campaign Trail

Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
Blotter Oppo
But Clinton's rivals have also targeted her. Stories about the criminal backgrounds of one of her fundraisers, Norman Hsu, were pushed along by both the Obama and Edwards camps. (Reuters)
Slideshows
ABC News on Facebook