To echo my colleague's comments, again I think we do need to look beyond just a tariff. We have done internal analysis. It's not really something that's written up like a journal article, so it's not quite in a shape that I could share, but that's where the estimates of the difference between what we can potentially gain or lose come from. That's where that amount, the $1.5 billion to $2 billion a year, comes from.
Again, to echo Gord's comments, it's beyond tariffs as well. Those other chapters are important to us. The rules-based trade, the sections around modern technology, around dispute resolution, are critically important to us. It is more than just the tariffs.