WASHINGTON — The Supreme Court on Tuesday took up an Alabama redistricting case that could have far-reaching effects on minority voting power across the United States and seemed likely to divide the court along ideological lines.The justices heard two hours of arguments in the latest showdown over the federal Voting Rights Act, with lawsuits seeking to force Alabama to create a second Black majority congressional district. About 27% of Alabamians are Black, but they form a majority in just one of the state’s …