By Andrew Chung WASHINGTON (Reuters) -The U.S. Supreme Court on Thursday declined to reinstate President Joe Biden’s policy shifting the focus of America’s immigration enforcement toward public safety threats, handing a victory to Texas and Louisiana as they challenge a plan they call unlawful. The justices on a 5-4 vote denied the Biden administration’s request to block a federal judge’s ruling that had prevented immigration officials from carrying out the enforcement guidelines while litigation over the legality of the policy continues. But the court said in a brief order that it would fast-…