Pennsylvania is a key state in the 2020 election, where polling averages show Joe Biden leading by roughly 4 to 6 percentage points.
On Wednesday, the Supreme Court again refused a GOP effort to block a three-day extension for counting absentee ballots. We get the latest on mail-in voting in Pennsylvania from Jonathan Lai, data and democracy reporter for the Philadelphia Inquirer.
This article was originally published on WBUR.org.
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