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Koch-affiliated group will sit out Virginia Senate race

A tea party group backed by billionaire conservatives plans to sit out the U.S. Senate race in Virginia. News outlets report that Americans for Prosperity will not support Republican nominee Corey Stewart as he tries to unseat incumbent Democratic Sen. Tim Kaine.

Americans for Prosperity has been supported by conservative industrialists Charles and David Koch. The group spent heavily to help Stewart's opponent in the GOP primary earlier this year and was a major spender in last year's election for governor.

Stewart is an outspoken supporter of President Donald Trump who has often targeted fellow Republicans.