Supreme Court Begins New Term with Major Cases on Climate Change, Immigration, and Voting Rights

The U.S. Supreme Court commenced its new term on Monday, October 5, 2026, with a docket including significant cases on climate change, religious rights, and immigration. Key issues to be addressed include challenges to the Trump administration's immigration policies, such as mandatory detention and third-country deportations, as well as a Republican push to enforce strict Arizona voting laws requiring proof of citizenship for voter registration and regular purges of voter rolls. The court will also hear a case involving Catholic preschools excluded from a Colorado taxpayer-funded program over faith-based admissions policies, and cases concerning gun rights and lawsuits against energy companies for climate change impacts.