By Joseph Ax (Reuters) – The outcome of state supreme court races in Tuesday’s midterm elections could have profound consequences for control of the U.S. Congress in the future, as well as abortion rights in several states. The races, typically a political afterthought, emerged as electoral battlegrounds this year, especially after the U.S. Supreme Court’s decision in June to eliminate a nationwide right to abortion. Here’s a rundown of the results from pivotal states: NORTH CAROLINA Two Republican challengers, Trey Allen and Richard Dietz, defeated Democratic incumbent Sam Ervin and Democrati…