reporter: for the fourth consecutive week the mexican delegation met with us trade representatives to finalize nafta. for the first time in 20 weeks white house advisor jared kushner joined the negotiations, the delegation all smiles, even joking as they walked in. one issue expert say the us has to depend on is subtext laws that were not addressed last weekend one of the items tackled by the end of this week. the us wants nafta to end after five years but mexicans went reassessment of the numbers after five years. we have not yet discovered. we are working for the last four weeks and we are hoping we will see the end of the total. the new mexican president-elect would like a revised nafta deal for his first day in office but once a deal is done with mexico it will be presented to canada to sign on