apparently no one checked with the post office before setting mailing deadlines
https://www.clickondetroit.com/decision-2020/2020/08/15/usps-cannot-guarantee-michigans-mail-in-votes-will-arrive-in-time-to-be-counted/
https://www.clickondetroit.com/decision-2020/2020/08/15/usps-cannot-guarantee-michigans-mail-in-votes-will-arrive-in-time-to-be-counted/
The Postal Service sent Benson’s office a letter that said Michigan’s vote-by-mail laws are “incongruous” with USPS standards and that the ballot deadlines create a mismatch with delivery.