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Program appear to be falling apart. >> commitments were made. >> reporter: but foreign leaders have disputed the depth of his claim. and now comes the latest, the presidents boast that his new trade agreement with mexico is flat out historic. >> this is one of the largest trade deals ever made. maybe the largest ever practima. the two countries were able to come together and get it done. >> reporter: the problem? several other deals including the north american free trade agreement which trump i...