The ostensible purpose of antitrust policy is to promote healthy competition in the marketplace, but antitrust enforcement has largely protected inefficient firms from the threat of competition and deprived consumers of the lower prices they would otherwise enjoy. Thanks to legal scholars like Robert Bork, antitrust enforcement over the past four decades has primarily focused on the most logical place—maximizing benefits for consumers. But Democrats are taking a radical turn from Bork’s philosophy by reviving a nearly 90-year-old price discrimination law known as the Robinson-Patman Act, makin…