The Canadian dollar declined to an almost seven-week low against the U.S. dollar, as uncertainties over the NAFTA deepened.
In a tweet posted on Saturday, U.S. President Donald Trump said there is "no political necessity to keep Canada in the new NAFTA deal," and that Congress "should not interfere" with the negotiations. Last week, the U.S. and Mexico went ahead with a deal without Canada.
There was apparently some expectation last week that Canada would be joining the new deal, but Trump’s latest tweet might have dampened that outlook. With around 75 percent of its exports sent to the United States, Canada’s economy could potentially feel a substantial headwind if a deal is not reached. The U.S. dollar rose to 1.3192 against the Canadian dollar on Tuesday - its highest level since July 20. The greenback later eased to 1.3181.