The two challengers were leading in the Clackamas County Commission races.
Light rail critic John Ludlow was ahead of incumbent Chair Charolette Lehan by a margin of 52 to 48 percent.
Former state Rep. Tootie Smith, another light rail critic, was leading incumbent Commissioner Jamie Damon by a similar margin.
The difference in vote was far more than the ballots handled by a temporary elections worker accused of altering some to favor Republican candidates. Although the commission seats are non-partisan, Ludlow and Smith are Republicans while Lehan and Damon are Democrats.