RSA 659:14 Special Provisions for State and Presidential Primary Elections.

I. A person desiring to vote at a state or presidential primary election shall, at the time of announcing the person's name, also announce the name of the party to which the person belongs or whether the person is registered as an undeclared voter. If the person's party membership has been registered before, the person shall be given only the ballot of the party with which the person is registered, unless the person desires to vote the ballot of a party not having official existence at the time the person's party membership was previously registered, in which case the person may vote the ballot of such a party in the state primary election immediately following the political organization's official existence as a party, and not in any subsequent state primary election. A person may