If the editors had checked, they would see that the Canadian dollar has had very little fluctuation in months.    An easy place to check is Kitco, "All metal quotes"  which includes currencies and commodities. Oil has hovered around $48. USD, now a little lower,  Currency traders, for example "XE.com"  indicate that the CDN dollar is weakening.  
Thankfully the NAFTA discussions will go on for many months, or years.