An assessment of progress in free trade and generating jobs in N. America under the NAFTA agreement between the U.S., Canada and Mexico. The agreement was signed under President Clinton in 1994. NAFTA removed existing tariffs on over half of the exports from Mexico to the U.S. and phased out remaining tariffs between the U.S., Canada and Mexico. The U.S. had two way trade of $918 billion with Canada and Mexico in 2010, according to the Office of the U.S. Trade Representative. Canada is the U.S.'s top trading partner, with $462 billion in trade through Sept. 2012, and U.S. trade with Mexico- expected to overtake China- is at $369 billion in the same 9 month period of 2012.