The phrase "spirited primary challenge" refers to a competitive and enthusiastic contest between candidates from the same political party during the primary election. Full definition
«Tonight, it appears that four Senate Republican incumbents who faced spirited primary challenges have won victories. (nystateofpolitics.com)
While never the closest of allies, Cuomo and the party have engaged in open warfare recently after the liberal - leaning organization opted to endorse Cynthia Nixon, the actor and education activist who has mounted a spirited primary challenge for governor from the left. (politico.com)
This development is particularly good for Maloney, who is facing a spirited primary challenge from Reshma Saujani. (nystateofpolitics.com)