Pennsylvania's governor and state legislature — as well as the national political parties and campaigns — have been at odds, leading to election workers doing what they can to help voters keep up.
The decisions come just seven weeks before Election Day and as a flurry of election-related lawsuits heat up around the country.
The postmaster general spoke to dozens of the nation's top election officials Thursday, ahead of an election season that will see record numbers of mail ballots.
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President Trump's lawyer sought to downplay his meeting and contacts with a Ukrainian member of parliament who has been described by the U.S. as attempting to interfere in the 2020 election.
President Trump's attacks on mail voting combined with changes by the postmaster general have undermined some confidence in the system — but experts say the Postal Service can handle the job.
The U.S. sanctioned and charged foreigners it said were connected with interference. Meanwhile, Microsoft announced that it uncovered cyberattacks on political targets.
Secretary of State Brad Raffensperger says 1,000 people voted twice in the state's primary election this year but said he had no evidence the cases weren't honest mistakes. The state is investigating.
Other states will begin doing the same over the next few weeks in an election that's expected to break all records in the number of ballots cast early and by mail.
Facebook and Twitter have both flagged content about Trump's suggestion that supporters should visit polling stations to "make sure" their mailed ballots count. Voting twice is illegal.
The U.S. Postal Service still has a number of hurdles to overcome to support upcoming general election mail-in ballots, its inspector general's office says.
Trump's supporters don't trust voting by mail, said one local Wisconsin GOP chair. "And one of the reasons they don't trust it," he said, "is the president's previous tweets and comments about it."
The Office of the Director of National Intelligence will no longer verbally brief Congress on election interference, instead providing written information, Director John Ratcliffe wrote.
The president has backed off his attacks on the Postal Service but continues to question the integrity of mail ballots, without providing any evidence.
Louis DeJoy reportedly tells officials he's setting up a task force to make sure each mail processing plant has sufficient capacity to handle the expected surge in mailed ballots this year.