Oregon appears headed toward a low turnout by its nearly 3 million voters – and potentially a new historical low in a midterm election. The final count won’t be known until next Tuesday. The Legislature last year extended the timeline for mail-in ballots. Those postmarked by 8 p.m. on Election Day will be counted, provided they arrive within a week. As of Tuesday at 8 p.m., the Secretary of State’s Office showed that nearly 28% of the state’s 2.9 million registered voters had turned in their ballots.