Read this passage from the voting rights act of 1965: the congress finds that the requirement of the payment of a poll tax as a precondition to voting (i) precludes persons of limited means from voting or imposes unreasonable financial hardship upon such persons as a precondition to their exercise of the franchise, (ii) does not bear a reasonable relationship to any legitimate state interest in the conduct of elections, and (iii) in some areas has the purpose or effect of denying persons the right to vote because of race or color. upon the basis of these findings, congress declares that the constitutional right of citizens to vote is denied or abridged in some areas by the requirement of the payment of a poll tax as a precondition to voting.1according to this excerpt, why was the voting rights act needed to enforce the fifteenth amendment?