Well, we should certainly continue trading with Mexico in the long term regardless of NAFTA, but we do need to pursue changes that address inequities in trade as a result of Mexico's lower environmental, pay rates, labour standards and social welfare programs.  Doing so would make for a more equitable system of trade while also improving working and living conditions for Mexicans and Canadians.  Were the US to leave NAFTA, keeping the status quo with Mexico in terms of free trade is just not an option as it favours Mexico too greatly.