President Donald Trump’s administration asked the Supreme Court on Thursday to let it enforce a new US Postal Service rule tightening the use of mail-in ballots, moving swiftly after a judge temporarily blocked the regulation ahead of November’s midterm elections. In an emergency request, the Justice Department asked the Supreme Court to lift Boston-based US District Judge Indira Talwani’s order temporarily preventing the USPS from enforcing the new rule, which it adopted following an executive...