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Mainstream is one of the most effective political organizations in the Northwest and a powerful voice for common sense solutions.

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Mainstream is one of the most effective political organizations in the Northwest and a powerful voice for common sense solutions.

Learn about Mainstream's slate of endorsed candidates for the 2019 Primary Election.

Don't miss our 50th Anniversary Cascade Gala on October 30!

See some examples of Mainstream's independent expenditure campaigns on behalf of endorsed candidates.