The chancellor's Spring Statement was delivered on 26 March.  In its 3,900 carefully crafted words, there wasn't one word about tariffs.  That was most probably by design.  Better not mention them.  

The 156 pages of the OBR's Economic and Fiscal Outlook published on the same day, did mention three possible US trade policy scenarios and their likely impact on public sector net financial liabilities (PSNFL) and thereby on GDP. These were set out on pages 154 to 156.  Just seven days later, came the much-heralded unravelling of the world's trading arrangements.