A salesman's puff.
Reasonable people don't rely on promises made by Nigel Farage. Unfortunately many of the public are not reasonable people.
puffing
Puffing is a term in
commercial law which means to convey an overstated belief about some
good or service to a prospective buyer with the goal of making a sale of that good or service. This concept is distinct from
fraud, in which someone makes a factual misrepresentation intending for another party to
rely on that misrepresentation, who then does
reasonably rely on it and suffers resulting
harm.
Puffery, unlike fraud, is characterized by the idea that
no puffing statements could be reasonably relied upon because they are statements of opinion rather than fact. Puffing statements typically do not give rise to
express warranty actions, although if even one such statement goes too far beyond the boundaries of belief, that then could serve as the basis for an action on the express warranty or fall under the
implied warranty of fitness for the good or service sold.