Why even ask the birther question? Jensen noted that his firm has a long-held interest in "the measure of extremism in the American public." PPP polls also have asked if voters believe President George W. Bush "intentionally allowed the 9/11 attacks to take place because he wanted the United States to go to war in the Middle East." In September 2009, 27 percent of Obama voters answered yes.
"The truther accusation ultimately is much more malicious than the birther accusation," Jensen observed. PPP has tracked truthers and birthers to test the public's willingness to demonize a president. In this country today, a nasty rumor has everything but brakes.