https://www.brookings.edu/blog/fixgov/2023/01/10/mccarthy-paid-a-steep-price-for-his-speakership-now-what/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=241166899&utm_source=hs_email
https://www.opendemocracy.net/transformation/paul-walsh/brexit-corbyn-and-us-what-disappointment-can-teach-us-about-politics-and-o?utm_source=Daily+Newsletter&utm_campaign=ab19bf6629-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-ab19bf6629-407405485
http://www.elperiodico.com/es/politica/20171226/que-es-tabarnia-propuesta-secesion-barcelona-tarragona-resto-cataluna-6517873