The United States Supreme Court has voided a key provision of a landmark civil rights law by ruling that the electoral map of Louisiana had been drawn up unconstitutionally to create two Black-majority districts. The decision represents a major reinterpretation of the landmark Voting Rights Act of 1965 – in particular, its provision designed to protect minority voters from having their political power diluted. It is unclear how much of that provision – Section 2 of the act – remains in force. Wednesday’s Supreme Court ruling is seen as a major win for Louisiana Republicans and President Donald Trump’s administration and is expected to make it harder for minorities to challenge electoral maps as racially discriminatory under the 1965 law.…