Which term refers to the overall impact of a candidate's success on their party during elections?

The term that accurately describes the overall impact of a candidate's success on their party during elections is the coattails effect. This phenomenon occurs when a strong candidate effectively brings other members of their party into office through their popularity or electoral success. When voters show strong support for a particular candidate, they may also vote for other candidates from the same party on the ballot, thus enhancing their chances of winning.

The coattails effect is particularly notable during presidential elections, where the popularity of the presidential nominee can lead to gains for congressional and local party candidates. This dynamic underscores the importance of having charismatic and well-supported candidates who can elevate the entire party's performance in elections, translating to increased representation and potential influence in government.

Other terms, such as "election power," "dynamic support," and "party influence," do not specifically capture the idea of one candidate's success boosting others in the same party during elections. Instead, they may refer to broader concepts within political science that lack the specific causal relationship described by the coattails effect.