Barack Obama

Pages

Roberta McCain

Todd Levin and Faith discuss Roberta McCain's recent C-SPAN interview about her son, Senator John McCain, and whether it's wise to let family members chat with reporters on the campaign trail.

Arts, Culture & Media

Duncan Watts

Duncan Watts, a sociologist at Columbia University, talks about trends, marketing and whether supposedly influential "trendsetters" actually carry as much weight as experts have long thought they do.