how accurate as indicators of electoral success are informal requirements based on political party, electoral experience, race, gender, religion, education, and wealth?

Highly important

Explanation:

In simple words, all the factors mentioned above like race, gender, religion and wealth etc. are very important for electoral success. All these factors are part of the candidate's image and his or her personality. It depicts his desires with his or her political movements and what are his aspirations and goals.

In fact, in current scenario of American politics, considering these factors informal is incorrect altogether.

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