Why the polls might be wrong

This presidential campaign has seen more opinion polling than ever. But here’s why Tuesday’s outcome still might be a surprise, as reported by McClatchy Newspapers: Because of the “14 percent of Americans who don’t use landline phones at home, and thus aren’t called by many pollsters.” Because first-time voters and African-Americans could turn out in higher numbers than expected. And because “for every 100 households called, 75 to 80 refuse to be polled or don’t answer their phones.” Another tidbit: 55 percent of cell-only users support Barack Obama. Then again, that percentage was established via polling, which may or may not be reliable.