The USPS has a mail capacity of 300M or so per day, estimated 140M ballots will be sent which is how many people are registered to vote, that's half a day's sorting capacity, that's of course assuming everyone drops it in the mailbox the exact same day.
The USPS has a mail capacity of 300M or so per day, estimated 140M ballots will be sent which is how many people are registered to vote, that's half a day's sorting capacity, that's of course assuming everyone drops it in the mailbox the exact same day.