The Financial Post reports in its Friday, Nov. 17, edition that dozens of American lawmakers, predominantly Republicans, are urging the Trump administration to cool off on some of its North American free-trade agreement demands. The Post's Marie-Danielle Smith writes that as a fifth negotiating round starts Friday in Mexico, Canadian lobbying efforts persist. However, some are predicting the deal looks more than likely to fall apart completely. American business and industry organizations had already raised alarms over some of President Donald Trump's more contentious asks, but politicians are increasingly joining the chorus. A letter to trade representative Robert Lighthizer Wednesday garnered signatures from 57 Republicans and 15 Democrats in Congress. The letter says: "While we agree that NAFTA should be updated to help our companies better address the challenges of the 21st century economy, it should not be terminated. Unfortunately, it appears that several U.S. proposals under discussion in the NAFTA negotiations would eliminate the competitive advantages provided to the U.S. auto industry under the current NAFTA rules -- or lead to rejection by Canada and Mexico and the end of the agreement."