The U.S. Supreme Court on Tuesday put new restrictions on presidential powers, limiting a president's authority to staff certain top government posts in a case involving an appointment to the National Labor Relations Board. The court decided 6-2 to uphold a lower court's ruling that then-President Barack Obama exceeded his legal authority with his temporary appointment of an NLRB general counsel in 2011. In an opinion by Chief Justice John Roberts, the court said that under the Federal Vacancies Reform Act, a person cannot serve as the acting head of a federal agency once the president nominates him or her...