A wedge strategy is where you focus on a highly charged issue at the borders of rationality and emotion. The emotional content of the issue can creat… - Ze Frank

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A wedge strategy is where you focus on a highly charged issue at the borders of rationality and emotion. The emotional content of the issue can create a moral conviction that the issue needs to be resolved at any cost. Tactics that would otherwise be called into question can then be employed to resolve the issue. This sets precedent for the future use of those tactics in other arenas.