Hauerwas clearly spells out a rebuttal to the ones (even his fans) who want to criticize the political efforts of some Christians to speak the truth to power, and then use Hauerwas’ writings to defend that view. LIke Scripture itself, Hauerwas is practically impossible to summarize. The whole work must be taken into account, as does the Community from which it springs. Exhibit A:

Calling for the Church is NOT a formula for a withdrawal ethic; nor is it a self-rigtheous attempt to flee from the world’s problems; rather, it is a call for the church to be a community which tries to develop the resources to standwithin the world witnessing to the peaceable kingdom and thus rightly understanding the world. The gospel is a political gospel. Christians are engaged in politics, but it is a politics of the kingdom that reveals the insufficiency of all politics based on coercion and falsehood and finds the true source of power in servanthood rather than dominion.

The Peaceable Kingdom, p. 102