https://www.politico.eu/article/pedro-sanchez-spain-election-parliament-2023-catalan-independence/
https://institute.global/news/progressive-politics-populist-era?utm_source=Institute+Interest&utm_campaign=813e2f7781-EMAIL_CAMPAIGN_2018_11_14_09_00&utm_medium=email&utm_term=0_a778d447d9-813e2f7781-65414641
https://www.ips-journal.eu/topics/foreign-and-security-policy/a-message-of-disunity-7363/
http://www.ips-journal.eu/in-focus/migration-and-the-european-left/article/show/turn-left-the-other-left-2179/