Brexit: Irish border issue could land UK in court, report finds https://www.theguardian.com/politics/2020/jan/13/brexit-irish-border-uk-northern-ireland?utm_term=Autofeed&CMP=twt_gu&utm_medium=&utm_source=Twitter#Echobox=1578896507
Staying in a customs union after Brexit won’t resolve the Irish border issue | Pascal Lamy https://www.theguardian.com/commentisfree/2019/apr/12/brexit-customs-union-labour-irish-border?utm_term=Autofeed&CMP=twt_gu&utm_medium=&utm_source=Twitter#Echobox=1555057877
The fraught issue of the Irish border continues to be a “significant problem” in Brexit talks, government sources have said. https://www.theneweuropean.co.uk/top-stories/brexit-talks-between-may-raab-and-barnier-stall-over-irish-border-1-5736534