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PORTLAND -- The former Clackamas County elections worker accused of ballot tampering pleaded guilty on Thursday.

Deanna Swenson of Oregon City was arrested last fall after another election worker saw her filling in ovals on ballots where preferences had been left empty by voters.

Defense attorney Jason Short said a plea deal was reached and Swenson received a 90-day jail sentence. She was also fined and ordered to perform community service.

Swenson admitted tampering with two ballots. She had been charged with official misconduct, altering a cast ballot and voting more than once.

More: Oregon City woman says she's sorry for ballot tampering

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