Not an expert on tariffs, but I believe they are assigned based on the date they leave port from their source (or arrive at port?). So there were some rushes fo

Not an expert on tariffs, but I believe they are assigned based on the date they leave port from their source (or arrive at port?). So there were some rushes for suppliers to ship things before the new tariffs kicked in, even though they would arrive at port after the new tariffs were "in effect".