With about a month until the first nominating contests in the Democratic presidential primary, Bernie Sanders, 78, is best-positioned in the first caucus and primary states of Iowa and New Hampshire, ...

Source: Polls collected by The New York Times. To suggest a poll, or report a possible error, contact polls@nytimes.com.

A second poll of New Hampshire Democratic primary voters shows Vermont senator Bernie Sanders closing the gap with former secretary of state Hillary Clinton. According to a new Suffolk University poll ...

In a safe Democratic seat in North Carolina, a match-up between a two-term Congresswoman and a progressive local official ...