Clackamas County Elections Clerk Sherry Hall speaks at the office on Thursday, May 19, 2022, Oregon City, Ore. Ballots with blurry barcodes that can't be read by vote-counting machines will delay election results by weeks in a key U.S. House race in Oregon's primary. Hall said the problem first came to light May 3, when elections workers put the first ballots returned in the vote-by-mail state through the vote-counting machine. (AP Photo/Gillian Flaccus)

Observers speak with Clackamas County Elections Clerk Sherry Hall, right, as election workers review ballots on Thursday, May 19, 2022, Oregon City, Ore. Ballots with blurry barcodes that can't be read by vote-counting machines will delay election results by weeks in a key U.S. House race in Oregon's primary. (AP Photo/Gillian Flaccus)

An election worker examines a ballot at the Clackamas County Elections office on Thursday, May 19, 2022, Oregon City, Ore. Ballots with blurry barcodes that can't be read by vote-counting machines will delay election results by weeks in a key U.S. House race in Oregon's primary. (AP Photo/Gillian Flaccus)

An election worker at the Clackamas County Elections office shows barcodes on ballots that is bad, top, and good on Thursday, May 19, 2022, Oregon City, Ore. Ballots with blurry barcodes that can't be read by vote-counting machines will delay election results by weeks in a key U.S. House race in Oregon's primary. (AP Photo/Gillian Flaccus)