Republican lawmakers in Louisiana, Alabama, and Tennessee are set to make the next moves in the mid-decade redistricting battle , seeking to further bolster their party’s chances in the fall midterms in the wake of a Supreme Court decision that hollowed the Voting Rights Act .  The court’s ruling last week, which struck down Louisiana's electoral map, weakened a core provision of the landmark law, opening the door for Republicans, especially in Southern states, to eliminate majority-minority districts in order to draw new voting lines that could help the GOP win additional House seats. The Republican governors of Louisiana, Alabama, and Tennessee quickly took action to capitalize on the decision.  In Louisiana, Gov. Jeff Landry suspended the state’s May 16 primaries to allow lawmakers to create new congressional maps following the Supreme Court ruling. A special legislative session called by Gov.…