Has There Been A Bernie Sanders Blackout?

In our ongoing collaboration with FiveThirtyEight.com, we've been considering whether media coverage drives polls or whether polls (and general interest) drive media coverage. According to Democratic presidential hopeful Bernie Sanders, it's the former; the Vermont senator has long accused the media of "blacking out" his campaign, dumbing down the national conversation on the issues behind candidate platforms, and handing Donald Trump free publicity and undue legitimacy.  Is there a Bernie "blackout?" Has he actually received less coverage? What accounts for his sudden surge? Bob sits down with FiveThirtyEight's Senior Political Writer Clare Malone to look at the question of Bernie and the media.