mexico city embolden mexico harden opposition president donald trump friday say would retaliate unite state impose border tax afford lose financial aid might pull pay border wall foreign minister luis videgaray say mexico could respond tax unite state unilaterally impose import southern neighbor finance wall levy select goods aim u.s. regions dependent export south border without doubt possibility remain arm cross videgaray say radio interview mexican government would respond statements videgaray interior minister miguel angel osorio chong minimize potential impact rumor loss u.s. security aid toughen defiant tone mexico since president enrique pena nieto last month cancel trip meet trump wall dispute mexicans angry trump call u.s. firm invest south border insult immigrants threats make mexico finance border wall peso currency weaken concern hurt latin america economy pena nieto face criticism accommodate trump get much need rat boost cancel summit plan deport third-country nationals mexico fuel outrage week mexican officials publicly blunt u.s. secretary state rex tillerson homeland security john kelly trump immigration trade proposals visit mexico thursday osorio chong tell local radio mexican officials rejection trump bid send non-mexican illegal migrants unite state mexico clear ask us non-mexican illegal immigrants could go legal process say ... absolutely way videgaray say trade strategy would replicate 2009 campaign retaliatory tariff help mexico win dispute unite state wednesday minister mention iowa texas wisconsin state could target conversation lawmakers leak two newspapers preference say mexico believe free trade u.s. executive order jan. 25 mandate construction border wall also require government agencies report financial assistance give mexico past five years lead speculation trump want redirect aid pay construction osorio chong say friday mexico need financial aid unite state signal would come close pay estimate 21.6 billion cost wall like middle-income emerge economies many mexico consider humiliate take aid wealthy countries large part u.s. aid mexico come plan merida program u.s. congress allocate 2.6 billion security assistance 2008 2016. 1.6 billion disburse november 2016 accord u.s. congressional research service realize leave merida understand even significant osorio chong tell local radio object move resources ... mexico capabilities say u.s. customs border protection agency say friday accept proposals next month design trump wall first step pick vendors videgaray say meet tillerson kelly pena nieto mexico city short courtesy visit say substantial meet minister kelly tell deportations undocumented immigrants unite state would militarize trump characterize process military operation mexico warn tariff spurn u.s. aid review trump