Tennessee Rep. Mark Green announced that he has resigned from Congress to take a mysterious new job — narrowing Republicans’ already ultra-slim majority by one seat ahead of messy fights such as the looming government shutdown battle in the fall. The retired US Army officer had revealed his intention to step down last month after passage of the One Big Beautiful Bill Act, but had refrained from giving an exact date. On Friday, he tendered his resignation, which is effective July 20, per...