A CNN / Nielsen Research Corp . Poll released 2008 . It suggests the free trade issue may pose a challenge for McCain . `` Unless there is a noticeable upturn in the country 's economy between now and November , this election is likely to be dominated by economic concerns . '' Poll : 51 percent of Americans view foreign investment as a threat to the economy .
A CNN / Nielsen Research Corp . Poll released 2008 . It suggests the free trade issue may pose a challenge for McCain . Poll : 51 percent of Americans view foreign investment as a threat to the economy .