The Supreme Court, in a 5-4 decision, upheld state laws that allow the counting of late-arriving mail-in ballots even if they were postmarked by Election Day.
Ballot requests in 38 states, whether by mail or through some form of in-person early voting, surpassed 35 million this week.
Abbott's order shuttered dozens of sites statewide, limiting the number of drop-off locations to one per county, including in Texas' biggest cities.
Election judges said off-camera they have never seen anything like it.
Registered voters can also vote on Election Day, even if they've requested mail in ballot.
It appears that an election worker's decision to throw out nine military ballots in Wilkes-Barre, Pennsylvania, amounted to a mistake and not "intentional fraud."
