The companies agreed not to discourage clients from buying ads on certain platforms because of the publishers’ perceived political affiliations. They didn’t admit to ever doing so.

Omnicom's $13.5 billion acquisition of rival Interpublic can move forward on the condition the new company does not enter agreements with others to steer ad dollars toward or away from publishers based on political content,

The Federal Trade Commission on Monday said it will approve Omnicom Group's $13.5 billion acquisition of rival The Interpublic Group, but only if the agencies agree they won't bar ads based on politics.