The special election kept not enrolled voters at home because they could not vote in a presidential primary. (nystateofpolitics.com)
Any Republican could still attempt to force their way onto the primary ballot by collecting the signatures of at least 15,000 active GOP voters in New York, including at least 100 or 5 percent of enrolled voters from one - half of the state's congressional districts. (syracuse.com)
Generally speaking, a candidate must collect signatures equaling at least 5 percent of the number of active enrolled voters in the political unit (e.g., the state for statewide offices, such as governor; the legislative district for state senate or assembly districts; etc.), or a fixed total established by statute, whichever is less. (ballotpedia.org)