Fiction, apparently.

“…what he read was clear proof of an Anglo-American covert operation already in the planning stage with the dual aim of undermining the social democratic institutions of the European Union and dismantling our international trading tariffs…In the post-Brexit era Britain will be desperate for increased trade with America. America will accommodate Britain’s needs, but only on terms. One such term will be a joint covert operation to obtain by persuasion — bribery and blackmail not excluded — officials, parliamentarians and opinionmakers of the European Establishment. Also to disseminate fake news on a large scale in order to aggravate existing differences between member states of the Union”

Agent Running in the Field, John le Carré