According to research, the majority of NH voters are "undeclared," meaning they could request either a GOP or Demoncrat ballot for the upcoming presidential preference primary.
So a good number of people could choose to vote GOP in the primary as anti-Trump spoilers. Just like Iowa and a lot of Dimocrats switching late to GOP and choosing Ikki Nikki, the "undeclared" vote in NH will not indicate her (or DeSanctus') actual level of support for a potential General Election contests.