The USPS regulation would impose new voter-specific data and ballot envelope standards and potentially refuse the delivery of ballots that do not comply. The justices have been asked to weigh in again on the Trump administration’s efforts to restrict mail voting — this time on whether the plans violate the Constitution. Key points and original sources are listed below.

• The USPS regulation would impose new voter-specific data and ballot envelope standards and potentially refuse the delivery of ballots that do not comply.S1

• The justices have been asked to weigh in again on the Trump administration’s efforts to restrict mail voting — this time on whether the plans violate the Constitution.S2

• The Trump administration is asking the Supreme Court to green-light a new Postal Service rule that would exert control over mail-in ballots ahead of the midterm elections.S3

• The Trump administration has asked the Supreme Court to lift a temporary block on the U.S. Postal Service plan for President Trump's attempt to restrict mail-in voting for the midterm election.S4