Morgan Stanley analyst Dara Mohsenian noted that with a December deadline approaching he has recently taken a number of investor calls about the risk to Constellation Brands if the U.S. withdraws from NAFTA, as President Donald Trump has threatened as a possibility. Risk is seen of taxes on Constellation's Mexican import beer business, but he thinks the administration and Republicans are unlikely to support placing an unpopular tax on beer consumers. A withdrawal from NAFTA could actually be a positive for Constellation, as it would likely see an indirect benefit from a potential weakening of the Mexican peso versus the U.S. dollar, Mohsenian tells investors. The analyst, who believes the company's strong long-term growth prospects continue to be undervalued, keeps an Overweight rating on Constellation shares.