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https://www.opendemocracy.net/can-europe-make-it/albena-azmanova-barbara-spinelli-co-signatories/la-defensa-del-estado-de-derecho-
https://assets.ctfassets.net/rdwvqctnt75b/7iQEHtrkIbLcrUkduGmo9b/cb429a657e97cad61e61853c05c8c4d1/Hansard-Society__Audit-of-Political-Engagement-16__2019-report.pdf