Who is talking about ceasing all trade with the UK? The biggest changes will not come for net trade volume but more through a shift in supply chains. Politician

Who is talking about ceasing all trade with the UK? The biggest changes will not come for net trade volume but more through a shift in supply chains. Politicians on either side will now have to make very bold promises so that businesses don't feel things are too much in limbo and pull the plug on their investments into the UK (factories, headquarters, ...).