mexico city mexico peso surge 1.8 percent dollar sunday ahead u.s. presidential debate comment donald trump make women video create storm around campaign currency move market asia begin monday trade p.m. cdt 2000 gmt peso strengthen 1.89 percent 18.955 per dollar republican nominee donald trump vow would build wall border mexico renegotiate scrap north american free trade agreement elect unite state mexico main trade partner wall street analysts say concern potential trade restrictions hurt peso mexican peso surge ahead u.s. presidential debate