Democratic nominee Joe Biden faces fresh challenges in Pennsylvania after the state Supreme Court ordered county elections officials to throw out mail-in ballots that are not submitted inside sealed “secrecy” envelopes.

High percentages of Pennsylvania Democrats are expected to vote by mail to avoid the risk of contracting the coronavirus, and party officials worry the high court’s ruling excluding “naked” ballots not submitted in the secrecy envelope could cost Biden thousands of votes. With this decision, voting by mail in Pennsylvania is a multistep process. The secrecy envelope must be sealed inside an outer envelope for mailing or drop-off.