When House Speaker Mike Johnson (R–La.) lashed out at last weekend's "No Kings" rallies soon to arrive on Washington's National Mall, he reached for an old conservative refrain: "They hate capitalism. They hate our free enterprise system." I am sure he's correct about some of the protesters. But the message rings hollow coming from a party leader that stands by as President Donald Trump does precisely what Johnson rightly decries: substituting political control for market choice and ruling by executive order. Indeed, what began as a populist revolt against so-called elites has become a program of state ownership, price fixing...