Longview Paper Mill Implosion Shapes Washington’s 3rd District House Race

In May 2026 a tank of white-liquor—a caustic chemical used in paper production—imploded at the Nippon Dynawave Packaging mill in Longview, Washington. The blast killed 11 workers and flooded regional hospitals with emergency pages.

The Guardian

Longview’s economy has long depended on paper mills; about 1,000 people worked at the Nippon Dynawave plant. The incident occurred amid a regional decline of mills, a trend that incumbent Democratic congresswoman Marie Gluesenkamp Perez has said drives “high anxiety levels” among residents.

The Guardian

• May 2026 – Tank implosion; 11 fatalities.

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• July 8 – State Senator Jeff Wilson, a former mill tank-cleaner, speaks about the community’s grief.

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• August 4 – Primary: Republican John Braun 39.7 %, Gluesenkamp Perez 36.4 %, progressive Democrat Brent Hennrich 16.7 %; Braun and Gluesenkamp Perez advance.

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• Mill workforce: ~1,000 employees.

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• Death toll: 11 workers.

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• Primary vote share: Braun ? 39.7 %, Gluesenkamp Perez ? 36.4 %, Hennrich ? 16.7 %.

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• Recent DHM Research poll (OPB): Braun 48 %, Gluesenkamp Perez 47 %, undecided 5 %.

The Guardian

Gluesenkamp Perez backed an amendment restoring $14 million for the U.S. Chemical Safety and Hazard Investigation Board, which passed the House appropriations committee with bipartisan support. In an OPB interview she linked the tragedy to ongoing mill closures and community anxiety.

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Progressive Democrats criticized Gluesenkamp Perez’s voting record. Their dissatisfaction was evident in the primary, where Brent Hennrich secured 16.7 % of the vote as the sole Democratic organization to endorse him over the incumbent.

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• “We get overhead pages for different types of emergencies. But this one, we don’t get very often,” — Laura Oltmann, dietitian

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• “Natural disasters will tend to bring people together,” — Mark Alan Smith, political science professor, University of Washington

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• “We believe in protecting immigrants. She’s voted to give more money to ICE,” — Thea Zaine, chair, 20th Legislative District Democrats

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The Longview tragedy briefly unified a community divided along political lines, yet analysts note that converting that unity into electoral advantage is difficult. Both campaigns have avoided making the disaster a central theme, and voters weigh economic concerns, party affiliation and specific policy positions.

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The November 2026 general election will pit Republican John Braun against incumbent Democrat Marie Gluesenkamp Perez for Washington’s 3rd congressional district. Both candidates must navigate a district still coping with the implosion while addressing broader economic anxieties and progressive critiques of the incumbent’s record.

The Guardian