MONTGOMERY, Ala. (AP) — Alabama lawmakers looking to take part in a national redistricting battle could vote Friday on a plan to alter state’s congressional primaries if the courts allow Republican state officials to switch to more advantageous U.S. House maps ahead of the November midterm elections. The Alabama legislation, which needs only a final Senate vote to go to Republican Gov. Kay Ivey, seeks to leverage a recent U.S. Supreme Court ruling in a Louisiana case that significantly weakened Voting Rights Act protections for minorities. Republicans in Southern states have moved quickly to try to capitalize on the case. Tennessee enacted new congressional districts Thursday that carve up a Democratic-held, Black-majority district in Memphis. Louisiana postponed its U.S. House primaries as lawmakers work to enact new districts. And Republicans in the South Carolina House also have proposed a new U.S. House map.…