What did the 24th Amendment ban in 1964? What was passed in 1965? Witch court case removed some of its protection?

The amendment prohibits Congress and States from imposing poll taxes in order to vote in federal elections. ... The 24th amendment also gave the power of the Congress to enforce it. A year and a half later, on 6 August 1965, the Voting Rights Act was enacted and prohibited poll taxes in all U.S. elections On 25 June 2013, the Court ruled by a 5-to-4 vote that Section 4(b) is unconstitutional because the coverage formula is based on data over 40 years old, making it no longer responsive to current needs and therefore an impermissible burden on the constitutional principles of fed.

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I'm just answering so the other person can get brainliest :)