The Koch brothers, Charles and David, are American businessmen known for their significant influence in politics and business. They co-owned Koch Industries, one of the largest privately held companies in the U.S., which operates in various sectors, including oil, chemicals, and consumer products. Their wealth and business acumen have made them prominent figures in the American economy. The Koch brothers are also recognized for their extensive political contributions and advocacy for libertarian principles. Through their network of organizations, they support policies that promote free markets, limited government, and individual liberties. Their involvement has sparked both admiration and controversy in the political landscape.