How Bernie did it in Iowa: The Nation podcast 2/3

John Nichols explains how Bernie went from 50 points behind to tie Hillary in Iowa – and what she is doing to change course.

Plus: Gary Younge says Trump is not a uniquely American phenomenon, but part of a broader Western European phenomenon of white, nativist responses to globalization, immigration and terrorism.

Also: Joan Walsh analyzes the GOP after Trump’s second place finish—as the party establishment has a chance to reassert itself.

And, as the Superbowl approaches, David Zirin has some unkind words about the NFL’s claims that its “Head Health Initiative” has reduced concussions.