COUNCIL BLUFFS, Iowa — Wall Street billionaires, Big Pharma, Big Insurance, venture capital giant Black Rock, Big Sugar, and the defense industry came under attack at the rally ahead of the Iowa caucuses, and the rally was for the most conservative Republican running for president.

Ron DeSantis will not be the populist candidate in the GOP field this year, as Donald Trump will wear that crown. But DeSantis is probably the party’s most ruthless critic of Big Business.