What does party nomination entail?

Party nomination is primarily about the official process whereby a political party selects and endorses a candidate to run for a specific office. This process is significant because it reflects the party’s support for the chosen candidate, which can mobilize resources, volunteers, and votes during the election. When a party officially nominates a candidate, it indicates that the party leadership believes this individual aligns well with the party's values and goals and has the best chance of winning the election.

In contrast to this, other aspects mentioned, such as choosing a candidate without support or endorsing multiple candidates for a single position, do not capture the essence of the nomination process. Similarly, selecting delegates for a national convention pertains to the broader framework of party organization and electoral procedures rather than the specific act of nominating a candidate for office. The critical element of party nomination is that it is an organized procedure that unites the party's members around a single candidate, ensuring that they present a cohesive front during the electoral process.