http://rockcenter.msnbc.msn.com/_news/2012/03/27/10885516-political-opposition-researchers-dish-dirt-predict-long-slog-to-november-election

“Lehane is just one of the many people who are fully-employed this election season, digging up the dirt that will be turned into the mud that gets slung all along the campaign trail. Lehane’s advisory firm is one of many who advise candidates about what dirt they can sling and what might be slung at them. There are even Super-Pacs, such as the Democratic group “American Bridge 21^st Century,” who are funded solely for the purpose of doing oppo.”