Voter registration closed on Monday, with more than 9 million people registering to vote in Pennsylvania in the November 5 election.

Philadelphia is among the more than half of Pennsylvania counties that notify voters if they submit flawed mail-in ballots and let them correct the errors before polls close, per an ACLU analysis. Why it matters: Thousands of mail-in ballots have been rejected for technical errors since Pennsylvania enacted mail-in voting in 2020.

Since the pandemic, early voting has become a broadly accepted part of American elections. But it is difficult to glean partisan advantage.

Pennsylvania law generally requires voters to return their own ballot and prohibits people from returning other voters’ ballots on their behalf.

Votes were being tallied for four days in 2020, but city election officials say fewer mail-in ballots and improved processes should make for quicker results this year.