How Craigslist undermined local newspapers and redefined political coverage

Local newspapers were once a staple of every American town. But with the rise of the internet came Craigslist — and with it, the largest threat to the financial survival of newspapers: free, online classified ads. Stanford University professor and researcher Gregory Martin joins Chuck to explain the findings of his study on how Craigslist changed the local news landscape and the impact of this change on political coverage and polarization.