'This is the beginning': Boris Johnson signs post-Brexit trade deal – video https://www.theguardian.com/politics/video/2020/dec/31/this-is-the-beginning-boris-johnson-signs-post-brexit-trade-deal-video?utm_term=Autofeed&CMP=twt_gu&utm_medium&utm_source=Twitter#Echobox=1609436665