The US Supreme Court handed President Donald Trump a victory on Thursday by backing the federal government’s authority to turn away asylum seekers when officials deem US-Mexico border crossings too overburdened to handle additional claims. The court, in a 6-3 ruling powered by its conservative justices, overturned a lower court’s finding that the policy violated federal law. The Republican president’s administration has said it may seek to revive the policy, known as “metering,” after it was dropped by Trump’s Democratic predecessor, Joe Biden.