Tennessee poised to vote today on new US House map Hello and welcome to the US politics live blog. Republican lawmakers in Tennessee are poised to push through a plan later today that would carve up a majority-Black congressional district. The move would reshape the electoral map to the GOP’s advantage as part of president Donald Trump’s strategy to try to hold on to a slim House majority in the November midterm elections. The redistricting effort in Tennessee is one of several rapidly advancing plans in Southern states as Republicans try to leverage a US Supreme Court ruling that weakened the federal Voting Rights Act, AP reports. The court ruled that Louisiana relied too heavily on race when creating a second Black-majority House district as it attempted to comply with the federal law. The high court’s decision altered a decades-old understanding of the law, giving Republicans grounds to try to eliminate majority-Black districts that have elected Democrats.…