Koch Brothers Worth $100 Billion Buying Printers to Ads

Charles and David Koch, the billionaire brothers who run Wichita, Kansas-based Koch Industries Inc., added $1.3 billion to their collective fortune yesterday on reports that U.S. industrial production gained more than forecast. The surge elevated their net worth to more than $100 billion, according to the Bloomberg Billionaires Index.

The Koch’s ascent comes as Freedom Partners, one of their fundraising networks, last week aired its first batch of television ads targeted at this year’s U.S. Senate races, including commercials knocking Democratic Senator Mark Udall of Colorado and Representative Bruce Braley of Iowa for supporting President Barack Obama’s health-care law.