In several countries of the European Union, the concept of referendums linked to the enlargement of the Union is well known. In 2016, the Netherlands held a referendum on the adoption of the association agreement between Ukraine and the European Union. The majority of voters rejected the agreement, but as it was only an advisory referendum, so the result did not ultimately bind the Dutch government. France’s constitution requires a referendum to be held before any future EU enlargement. I see no reason why Hungary should not be the next country to have such a plebiscite.