There have been a number of court cases, but this is the first that has been referred to the ECJ. It particularly concerns those who exercised their freedom of movement rights (i.e. moved to an EU country legally and registered, on the basis of work/study/retirement/dossing around but without sponging). The complainant in this case now has no right to vote anywhere.
EU's top court asked to rule on Britons' EU citizenship
EU's top court asked to rule on Britons' EU citizenship
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