Shannon O’Brien, the chairwoman of the Montana Democratic Party, announced her resignation on Monday as she simultaneously endorsed an independent candidate over her party’s nominee in the state’s Senate race.

O’Brien made the announcement in an MS Now op-ed, telling readers she could not back Montana Democrat Alani Bankhead because she “does not have the momentum, resources or will to win this race.” Instead, O’Brien prefers Montana independent Seth Bodnar to take on Republican nominee Kurt Alme in November.

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