David+Charles Koch

The new super PAC is an evolution for billionaire industrialists Charles and David Koch. | AP Photos

By KENNETH P. VOGEL and DARREN GOODE | 6/16/14 8:20 PM EDT Updated: 6/16/14 11:28 PM EDT

During a closed-door gathering of major donors in Southern California on Monday, the political operation spearheaded by the Koch brothers unveiled a significant new weapon in its rapidly expanding arsenal — a super PAC called Freedom Partners Action Fund.

The new group aims to spend more than $15 million in the 2014 midterm campaigns — part of a much larger spending effort expected to total $290 million, sources told POLITICO.,

It’s an evolution for billionaire industrialists Charles and David Koch. The vast network of political nonprofit groups they helped build has mostly funneled its unprecedented political spending into issue-based campaigns that usually slam Democrats for supporting big government but seldom explicitly ask voters to support GOP candidates.

That’s expected to change under Freedom Partners Action Fund, according to Marc Short, president of Freedom Partners Chamber of Commerce, an increasingly powerful force in the Koch network that will operate in association with the new super PAC.

“The Freedom Partners Action Fund will support candidates who share our vision of free markets and a free society and oppose candidates who support intrusive government policies that push the American Dream out of reach for the American people,” Short told POLITICO after a presentation to donors at the St. Regis Monarch Beach resort in Dana Point, California.

The gathering is the latest in a series of twice-annual so-called seminars that the Kochs started holding in 2003 to raise cash from wealthy donors after treating them to a series of slickly produced presentations from handpicked politicians, conservative media stars and operatives from Koch-backed groups.

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