The publisher is the service provider that actually publishes, distributes or broadcasts the political advertisement on a given medium. In practice, this role may be fulfilled by a television channel, a radio station, a newspaper, a platform, a website, a billboard operator or a content creator who makes the advertisement available to the public.
Please note, however, that a simple political post published for free on a social media platform is not automatically a political advertisement. The situation changes if the party, candidate or another organisation pays to promote the post, for example by ‘boosting’ it (i.e. paying the platform to give it greater prominence) or by funding a sponsored campaign targeting a specific audience (by age, place of residence, interests, etc.). As soon as a message is sponsored or ‘boosted’ in return for payment in order to increase its reach amongst a specific audience, it may fall within the scope of political advertising, provided that the other criteria of the definition are also met. In this case, the message becomes political advertising and the platform, by providing this paid promotion and targeting service, is regarded as a provider of political advertising services, or even as a publisher of political advertising within the meaning of the Regulation.