Analysis: What to expect at Democratic debate in Houston

BURLINGTON, Vt. (WCAX) Ten Democrats seeking to become the president are taking the stage in Houston Thursday night including Vermont Senator Bernie Sanders.

A CBS Poll from this weekend found a virtual dead-heat in New Hampshire. Asked whom they'd vote for today, more than 500 democrats there picked Elizabeth Warren. That's one percent more than Joe Biden and two-points ahead of Sanders. Everyone else was in the single digits.

The order of the top three varies in Iowa, South Carolina, Nevada and nationwide. But one thing remains constant -- Warren, Biden and Sanders are the only candidates with double-digit appeal.

Galen Ettlin spoke with University of Vermont political science professor Lisa Holmes about what she makes of these recent polls and what to expect in the debate.