By Joseph Ax (Reuters) – The Florida Supreme Court on Thursday declined to block the state’s new congressional map drawn by Governor Ron DeSantis’ administration, likely ensuring the plan will remain in effect for November’s midterm elections and giving Republicans a boost in their quest to win control of Congress. The plan has been challenged by several voting and civil rights groups as unlawful because it dismantles a majority-Black district in north Florida held by Democratic U.S. Representative Al Lawson. The groups have also argued that the map violates state constitutional provisions int…