WSJ:

But in a notable shift, public perceptions of the current U.S. military effort there “have become significantly more positive over the past several months,” says a recent report from the nonpartisan Pew Research Center for the People and the Press. It shows that almost half of Americans think the war effort is going well, and that the U.S. should keep its troops there, at least for the time being. Other polls echo the trend to varying degrees.