Koch-backed group targets Dems in 3 Senate races

(AP) — A group backed by billionaire industrialists Charles and David Koch is investing nearly $4 million in an advertising campaign attacking Democrats in three of the nation's top Senate contests.

The Freedom Partners Action Fund is targeting Nevada, Ohio and Pennsylvania in the television and online advertising blitz.

Freedom Partners is spending $1.2 million in Nevada airwaves claiming Democrat Catherine Cortez Masto "drove Uber out of Nevada" while serving as state attorney general.