Are Candidates Outside The Mainstream Electable?

A week from right now, we will likely know who won the Iowa caucuses. A new CNN poll shows Bernie Sanders closer than he's been to Hillary Clinton in months, though Clinton is still in the lead, ahead 52 percent to Sanders' 38 percent of registered voters who are Democrats or Democratic-leaning.

Political science professor Seth McKee of Texas Tech University joins Here & Now's Jeremy Hobson to discuss Bernie Sanders, who self-identifies as a democratic socialist, and how he compares to past candidates who have been outside of the mainstream. They also look at some of the Republican candidates who are not considered establishment candidates.