https://ec.europa.eu/commission/publications/terms-reference-article-50-treaty-european-union-negotiations_en
https://www.brookings.edu/articles/ten-thousand-people-could-decide-the-presidential-election/
https://blogs.lse.ac.uk/brexit/2020/03/09/brexit-is-a-policy-fiasco-were-voters-deceived-during-the-referendum/