FILE - 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. Gov. Tom Wolf's top election official said Friday, Aug. 14, that the administration had to take action after receiving a blunt warning from the U.S. Postal Service that it may be unable to deliver some mail-in ballots in the November presidential election by the deadline in state law. That warning precipitated Thursday night's filing in the state Supreme Court asking for an order to extend the deadline for mail-in ballots to be received in the Nov. 3 election when Pennsylvania will be a premier presidential battleground. (AP Photo/Matt Rourke, File)
FILE - In this Aug. 5, 2020, file photo Postmaster General Louis DeJoy, left, is escorted to House Speaker Nancy Pelosi's office on Capitol Hill in Washington. The U.S. Postal Service has sent letters to 46 states and the District of Columbia, warning it cannot guarantee all ballots cast by mail for the November election will arrive in time to be counted, The Washington Post reported Friday, Aug. 14. DeJoy, a former supply-chain CEO and a major donor to President Donald Trump and other Republicans, has pushed cost-cutting measures to eliminate overtime pay and hold mail until the next day if postal distribution centers are running late. (AP Photo/Carolyn Kaster, File)
FILE - In this July 31, 2020, file photo, letter carriers load mail trucks for deliveries at a U.S. Postal Service facility in McLean, Va. The success of the 2020 presidential election could come down to a most unlikely government agency: the U.S. Postal Service. (AP Photo/J. Scott Applewhite, File)
FILE - In this July 31, 2020, file photo, letter carriers load mail trucks for deliveries at a U.S. Postal Service facility in McLean, Va. The success of the 2020 presidential election could come down to a most unlikely government agency: the U.S. Postal Service. (AP Photo/J. Scott Applewhite, File)
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FILE - 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. Gov. Tom Wolf's top election official said Friday, Aug. 14, that the administration had to take action after receiving a blunt warning from the U.S. Postal Service that it may be unable to deliver some mail-in ballots in the November presidential election by the deadline in state law. That warning precipitated Thursday night's filing in the state Supreme Court asking for an order to extend the deadline for mail-in ballots to be received in the Nov. 3 election when Pennsylvania will be a premier presidential battleground. (AP Photo/Matt Rourke, File)
