Presidential historian Rick Shenkman talks about his book, "Just How Stupid Are We? Facing the Truth About the American Voter." He contends that voters are more and more susceptible to campaign slogans and easy solutions because they don't take the time to know enough about the issues and the candidates. Shenkman says voters have more power than they've ever had in the past, yet they are not exercising that power because they aren't taking the time to educate themselves.