The poll of 2,710 U.S. adults, released Friday, found just 11 percent of those surveyed online between Aug. 11 and Aug. 17 said they believed the situation in Afghanistan was improving. Thirty-seven percent said the situation was getting worse and 35 percent said they believed there had been no change, Harris said.

Fifty-four percent said they are not confident that U.S. efforts in Afghanistan will be successful while 17 percent said they are confident and 26 percent said they are unsure.

Sixty-two percent said President George W. Bush is doing a fair to poor job on Afghanistan and 25 percent described his job performance on the issue as excellent or very good.

No margin of error was reported.