Charles Koch, the billionaire industrialist and conservative megadonor, made a rare public appearance Thursday evening and called for libertarians to embrace their principles, in comments that seemed obliquely directed at a Republican Party taken over by President Trump.
Mr. Koch was at one time among the most powerful forces in Republican politics. In the 2016 election cycle alone, he and his allies spent $750 million to promote the party’s candidates and causes. But his political power has waned significantly since Mr. Trump’s election that year, and he is now seldom seen in Washington. And neither do Republicans worry much about his plans in a party that is much more in Mr. Trump’s image than in Mr. Koch’s.
But Mr. Koch, who will turn 90 this November, showed up in Washington to accept an award from the Cato Institute. Almost 50 years ago, Mr. Koch helped found Cato, one of the nation’s prominent libertarian think tanks. By 2012, Mr. Koch and his brother David had given about $30 million to the institute, but the relationship soured and the Kochs ended up suing the nonprofit before settling that June.
Accepting a prize named after Milton Friedman, the free-market economist, on Thursday, Mr. Koch made his first public remarks since Mr. Trump was inaugurated in January and enacted a number of policies that are anathema to Mr. Friedman’s and Mr. Koch’s politics, most notably the sweeping tariffs.
Mr. Koch dispensed with the cheery rhetoric of most conservatives these days. Speaking about the subsidies and protectionism of the past, he said that “you can see why we’re in the mess we’re in today.” The billionaire often speaks about his core “principles” in business and philanthropy.
“With so much change, chaos and conflict, too many people and organizations are abandoning these principles,” Mr. Koch later said, not uttering Mr. Trump’s name. He added, “But we know from history, this just makes the problems worse. And people have forgotten that when principles are lost, so are freedoms.”
