A partisan redistricting battle among states has accelerated ahead of the November midterm elections following a U.S. Supreme Court ruling that weakened the federal Voting Rights Act and opened the way for states to try to eliminate voting districts drawn for racial minorities. Legislative voting districts typically are redrawn based on census data after the start of each decade. But an unusual spate of mid-decade redistricting broke out after President Donald Trump urged Texas Republicans last year to reshape U.S. House districts to give the party an edge in the midterm elections. Democrats in California countered with their own political gerrymandering. More states followed. Eight states have already adopted new House maps, and several more are considering it. So far, Republicans believe they could win up to 13 additional seats from new districts in Texas, Florida, Missouri, North Carolina and Ohio.…