The US Supreme Court heard arguments on October 1 in a major immigration detention case. The case, Rhoney v. Barbosa da Cunha, challenges a Trump administration policy on bond hearings. A Department of Homeland Security guidance from July 2025 limited bond for many detained immigrants. The number of people in immigration detention has risen sharply since then. It grew from about 38,000 to more than 65,000. Immigrant advocates say the policy keeps people locked up without fair hearings. The government says it needs the powers to enforce immigration law. The court’s decision could affect tens of thousands of detainees. A ruling is expected next year. The case is one of several testing the limits of the administration’s immigration crackdown. Legal experts say the outcome will shape detention policy for years to come. The justices’ questions suggested a divided court, and immigrant groups are bracing for a narrow ruling. A decision is expected by next summer.