Which amendment abolished poll taxes in federal elections?

The 24th Amendment is the correct answer because it specifically prohibits the use of poll taxes in federal elections. Ratified in 1964, this amendment was part of a broader civil rights movement aimed at eliminating barriers that prevented certain groups, particularly African Americans and low-income individuals, from exercising their right to vote. Poll taxes were a financial requirement for voting, which effectively disenfranchised many eligible voters who could not afford to pay the tax. By abolishing poll taxes, the 24th Amendment made voting more accessible and fair, reinforcing the principle that all citizens should have the right to participate in democracy without economic barriers.

In contrast, the other amendments listed address different aspects of voting rights and civil liberties. The 15th Amendment prohibits denying the right to vote based on race, the 26th Amendment lowers the voting age to 18, and the 19th Amendment grants women the right to vote. Each of these amendments serves a significant purpose in expanding voting rights, but only the 24th directly addresses the issue of poll taxes in federal elections.