Billionaire Bill Koch has listed his 52-acre Aspen retreat for sale for $125 million. The Elk Mountain Lodge property hit the ...

William Koch, the billionaire brother of Tea Party darlings David and Charles, has listed his expansive Aspen ski mansion for $89.9 million, according to The Aspen Daily News (via Curbed).

TOPEKA, Kan. (AP) — Bill Koch won the America’s Cup, formed a commission to study criminal justice issues — and sued two of his brothers. He was expected to be the star witness during the third week ...