“The narrative is changing in New Hampshire,” said David Paleologos, director of Suffolk’s Political Research Center, which conducted the poll.

Earlier, he said, people were talking about a battle for progressive voters between Sanders and Warren.

“Now, add to that the war between Buttigieg and Biden,” Paleologos said.

Since the last Suffolk/Globe poll, older voters in particular have shifted. Among voters over 65 years of age, Biden dropped from 28 percent in August to 12 percent today, while Buttigieg has vaulted from 2 percent to 17 percent and now leads the field among seniors.

Buttigieg also leads the field among voters 56-65, among whom he has 22 percent support.