WASHINGTON (AP) Billionaire industrialist David H. Koch, who with his older brother Charles was both celebrated and demonized for transforming American politics by pouring their riches into conservative causes, died Friday at 79.
The cause of death was not disclosed, but Koch Industries said Koch, who lived in New York City, had contended for years with various illnesses, including prostate cancer.
A chemical engineer by training, Koch was an executive in the family-run conglomerate, the Libertarian Partys vice-presidential candidate in 1980 and a major benefactor of educational, medical and cultural organizations.
But he and his brother became best known for building a political network dubbed the Kochtopus for its many-tentacled support of conservative and libertarian causes and candidates.
The brothers in 2004 founded the anti-tax, small-government group Americans for Prosperity, which remains one of the most powerful conservative organizations in U.S. politics.
I was taught from a young age that involvement in the public discourse is a civic duty, David Koch wrote in a 2012 op-ed in the New York Post. Each of us has a right indeed, a responsibility, at times to make his or her views known to the larger community in order to better form it as a whole. While we may not always get what we want, the exchange of ideas betters the nation in the process.
While lionized on the right, the Koch brothers have been vilified by Democrats who see them as a dark and conspiratorial force, the embodiment of fat-cat capitalism and the corrupting influence of corporate money in American politics.
The Kochs invested heavily in fighting President Barack Obamas health care overhaul; they fought to bring conservative voices to college campuses; and they developed a nationwide grassroots network pushing conservative causes and candidates at the state and national levels.
The one exception: President Donald Trump. The Kochs refused to endorse Trump in 2016, warning that his protectionist trade policies, among other priorities, werent sufficiently conservative.
David Koch had stepped away from a leadership role in recent years because of declining health, including a decades-long battle with prostate cancer, and his brother became the networks public face.
In an interview after the 2012 Republican convention, his mind was on his legacy.
When I pass on, he told The Weekly Standard, I want people to say he did a lot of good things, he made a real difference, he saved a lot of lives in cancer research.
Koch donated $100 million in 2007 to create a cancer research institute at the Massachusetts Institute of Technology. He also gave millions to Johns Hopkins University in Baltimore, the Memorial Sloan-Kettering Cancer Center in New York, the M.D. Anderson Cancer in Houston and other institutions.
The Lincoln Center theater that houses the New York City Ballet became the David H. Koch Theater in 2008 after he gave $100 million. The Smithsonians National Museum of Natural History opened a wing in his name dedicated to the story of human evolution.
He said his philanthropy was fueled by a brush with death during a 1991 collision of two airliners at the Los Angeles airport. Thirty-four people were killed; Koch spent two days in intensive care with smoke inhalation.