A wave of outsider fervor has already knocked out a number of incumbents in primary races. Several more face spirited opposition.

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Phil Weiser beat Senator Michael Bennet in the Democratic primary, presenting himself as the stronger foil for President Trump.

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Primaries on Tuesday will be the latest test of Democrats’ anti-establishment mood.

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The Democratic primary on Tuesday is likely to decide the next governor, and Senator Michael Bennet, once seen as a shoo-in, is in a dogfight with Attorney General Phil Weiser.

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