The U.S. Supreme Court has rejected a legal theory that would have radically increased the power of state legislatures to reshape how federal elections are conducted, and would have made it easier to draw up gerrymandered congressional maps. Writing for the majority in Tuesday’s 6-3 ruling, Chief Justice John Roberts rejected the so-called independent state legislature theory promoted by North Carolina Republican lawmakers. The decision comes as the Supreme Court is poised to deliver major rulings on affirmative action and the fate of President Biden’s student debt relief plan. We’ll have more on this week’s blockbuster cases at the Supreme Court after headlines.