A group working to turnout undeclared voters for Nikki Haley in the New Hampshire primary said the former South Carolina governor needs to come within single digits of former President Donald Trump on Tuesday in order to prolong the2024 Republican nominating contest. “She has to come within single digits,” said Robert Schwartz, the co-founder of Primary Pivot, an organization urging atypical voters to participate in the GOP primary to oppose Trump. “A double-digit victory and the narrative is Trump is the nominee.” What’s more: A double-digit loss for Haley could quickly dry up outside resourc…