The Supreme Court overturned a lower court decision on Thursday, ruling that a newly drawn South Carolina Congressional district does not discriminate against Black voters, handing a win to the Republican Party in a critical swing state. The justices ruled 6-3 that moving the Congressional boundary lines so that 30,000 Black Charleston residents were no longer voters in South Carolina’s First congressional district was not a form of unconstitutional racial gerrymandering. The decision hinges on whether moving predominantly Black voters into a different district was based on party affiliation o…