Mr. Biden was not the only candidate seeming to move past New Hampshire. Ms. Warren, too, indicated in Concord on Sunday that she was looking to states further down the primary calendar and perhaps anticipating a very long primary campaign.
“There are 55 more states and territories after this,” Ms. Warren told reporters. “I’ve got plenty of energy left.”
Among moderates, the risk to Mr. Biden does not come solely from Mr. Buttigieg: Ms. Klobuchar, too, has shown signs of gaining ground since Iowa, and her campaign said she drew her largest crowd yet on Sunday in Manchester.
Ms. Klobuchar continued on Sunday to make a strenuous case to moderate voters that she was the best choice for those “tired of the extremes in our politics,” and several times mentioned that she hoped to win support from independent and Republican voters.
Even amid signs of a shift toward Mr. Buttigieg and Ms. Klobuchar, voters were still expressing anxiety about their final decision. At Ms. Klobuchar’s stop in Hooksett, Janet White, 70, said she had settled on Ms. Klobuchar through a “process of elimination,” excluding several candidates who were “too much to the left” and ultimately rejecting Mr. Biden as well.
“I like him as a person, I just think we need somebody younger,” Ms. White said. “We need somebody younger, and that’s what I like about Amy: She’s not too young, she’s not too old.”
Of Mr. Buttigieg, she said, “He’s another one I like, but I’m not sure it’s his time.”
Alexander Burns reported from Hooksett, and Nick Corasaniti from Plymouth, N.H. Thomas Kaplan contributed reporting from Dover, N.H., and Katie Glueck from Hampton, N.H.