Amy Beth Hanson, The Associated Press

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In this May 28, 2020, file photo, mail-in primary election ballots are processed at the Chester County Voter Services office in West Chester, Pa.
Post Office warns states across US about mail voting
The U.S. Postal Service is warning states coast to coast that it cannot guarantee all ballots cast by mail for the November election will arrive in time to be counted, even if mailed by state deadlines, raising the possibility that millions of voters could be disenfranchised.