Amid Tight Sanders, Clinton Race, Biden Remains A Wild Card

A new WBUR poll out Wednesday afternoon on the New Hampshire Democratic primary race shows the contest is close. Vermont Sen. Bernie Sanders holds a 4 point lead over former Secretary of State Hillary Clinton — a gap within the poll's 4.9 percent margin of error.

But, as WBUR's Simón Rios reports, the numbers are climbing for one Democrat who's not even in the race.