The U.S. House race in Nevada between Republican Danny Tarkanian and Democrat Jacky Rose has attracted more than $1.8 million in anonymous funding, ranking it eighth in dark money spending, Blankenbuehler reports. Arizona’s Senate seat, between Republican incumbent John McCain and Democratic House Rep. Ann Kirkpatrick, has attracted more than $1.5 million—10th among all races.
More than half of all dark money in the West—$18,724,079—has been spent to attack opponents, Blankenbuehler writes. "Nevada and Arizona's Senate races stand out not only in the West but also on a national scale. For both states, this election season is crucial: Since 2012, Democrats have held sway in Nevada and Republicans are vying for more influence in the important battleground state; Arizona, while securely red historically, may be trending more purple this year."