Rule Four in Saul Alinsky’s Rules for Radicals manifesto: Make opponents live up to their own book of rules. “You can kill them with this, for they can no more obey their own rules than the Christian church can live up to Christianity.”
This rule is all about exploiting the imperfection to be found in any person or ideology. It is also in this rule where hypocrisy really has a chance to shine.
For example, think about all of the sexual assaults which have taken place at Occupy gatherings around the country. The Left was happy to ignore all of this, but what happens when a Tea Partier is accused of sexual assault? A sexual assault didn’t happen at a Tea Party, and the charges were dropped, but the Left was in a frenzy of glee. The words “Tea Party” were used in headlines as though it was representative of the movement. They Left thought they had found an example of right-wing wrongdoing and, although they turned out to be wrong, they exploited it all they could.