Big switch from last year: Comics find humour in Obama; Romney who?

In this July 16, 2013 file photo, host David Letterman smiles on the set of the "Late Show with David Letterman."

http://www.nanaimodailynews.com/news/nation-world/big-switch-from-last-year-comics-find-humour-in-obama-romney-who-1.570024