The CBC Pollcast, hosted by CBC poll analyst Éric Grenier, explores the world of electoral politics, political polls and the trends they reveal.

The four candidates for the NDP leadership debated for the first time on Sunday. The event kicked off a race that has been dormant for nearly a year. It won't come to a conclusion until October, when New Democrats decide who should replace Tom Mulcair as their leader.

The debate was a collegial affair. But did it provide any clues as to how this campaign might play out for the next seven months?

Unlike the Conservative leadership race, which has 14 candidates in the running, so far the NDP has a more manageable group to showcase: MPs Charlie Angus, Niki Ashton, Guy Caron and Peter Julian.

But that group may grow soon.

To help navigate the NDP leadership campaign, Pollcast host Éric Grenier is joined again by NDP insiders Sally Housser of Navigator and Robin MacLachlan of Summa Strategies.

Listen to the full discussion above — or subscribe to the CBC Pollcast and listen to past episodes.

Past episodes with Robin MacLachlan and Sally Housser on the NDP leadership race:

Follow Éric Grenier, Sally Housser and Robin MacLachlan on Twitter.