https://www.socialeurope.eu/trump-and-brexit
https://socialeurope.eu/brexit-why-does-northern-ireland-matter-so-much
https://www.opendemocracy.net/en/opendemocracyuk/customs-union-leaves-everything-play-trade-justice/?utm_source=Daily+Newsletter&utm_campaign=f531c721c4-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-f531c721c4-407405485
https://publications.parliament.uk/pa/bills/cbill/2017-2019/0005/18005.pdf