Two recent polls showed President Bush with a double-digit lead over Sen. John Kerry, D-Mass., while others had the two contenders in a statistical dead heat. A columnist and pollster discuss how voters should view the divergent surveys.

A recent poll indicates that voters are largely dissatisfied with economic conditions, despite new figures showing improved growth. The majority fault President Bush's stewardship of the economy, according to the Pew Research Center survey released this month. Terence Smith examines…