This week, a bipartisan group of US senators took the first steps toward regulating online political advertising in a manner similar to the way the government already regulates these ads in traditional media. Democratic Sens. Amy Klobuchar (MN) and Mark Warner (VA), joined by Republican Sen. John McCain (AZ), say their Honest Ads Act will protect against foreign interference in elections by requiring platforms like Facebook to make details about ads’ buyers, pricing, and targeting publicly available.
Advocates cheered the move, which they said represented a long-overdue step to apply the same standards of transparency and fairness to online ads that have long been the norm for print, radio, and television. At the same time, the bill’s...