Andrea Lerner (left), and her husband, Ira Lerner, sift through the mail-in applications at the Voter Registration office in the Lehigh County Government Center in Allentown, Pa.

Andrea Lerner, left, and her husband, Ira Lerner, sift through the mail of mail-in applications at the Voter Registration office in the Lehigh County Government Center in Allentown, PA., on Tuesday, September 15, 2020.
Hannah Yoon for NPR