Forbes 4oo power players Rich DeVos, Ken Langone and Diane Hendricks all reportedly attended to strategize for the 2012 elections.

FORBES: Billionaires List: Koch Brothers, Right Wing Bankrollers

With his Omega partner Steven Einhorn and fellow-billionaire Ken Langone, the co-founder of Home Depot, he has drafted a second open letter, which he hopes will be co-signed by a large group of self-made billionaires, and published as a newspaper advertisement in some swing states.

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Langone is chairman of the Promise Academy, a charter school in New York City, and his Ken's Krew gives people with disabilities training and jobs at Home Depot and CVS stores.

FORBES: Kenneth Langone