Democratic representative Steve Cohen of Tennessee on Friday announced that he is ending his bid for re-election, his career upended by the redistricting battles that are sweeping the country after last month’s supreme court decision. Republicans in Tennessee this month enacted a new US House map that carves up Cohen’s majority-Black district, reshaping it to the GOP’s advantage as part of Donald Trump’s strategy to hold on to a slim majority in the November midterm elections. “I don’t want to quit. I’m not a quitter. But these districts were drawn to beat me,” Cohen told reporters in his Washington DC office. Cohen is challenging the state’s redistricting effort in court and said that he would re-enter the race if that lawsuit succeeded in restoring his old congressional district.…