… More than twice as many Americans (67%) say that the war in Afghanistan has not been worth fighting than say that it has been (32%). Majorities across the political spectrum agree that the costs outweigh the benefits, though Republicans are more likely to say the war has been worth it (41%) and Independents are least likely to say so (22%). [cont.]
Chicago Council on Global Affairs
See also: http://www.pollingreport.com/afghan.htm