Rejected mail ballots increased in Washington and Oregon after the United States Postal Service changed the rules for postmarking.

The new rule led to additional ballots being discounted because of late postmarks.

Lawmakers reported that, in several Washington counties, the number of rejected ballots more than doubled following the change.

The surge was linked to the Postal Service's adjustment to the way it postmarks mail, with consequences for voters who mailed ballots by the deadline.