Migrants just cross Mexico like they’re “walking through Central Park,” Trump once claimed.
In truth, Mexico is aggressive in enforcing U.S. immigration policy. In 2014 President Enrique Peña Nieto implemented a robust deterrence effort, the Southern Border Program, to deter migration across Mexico’s border with Guatemala.
Between 2014 and 2015, Mexican deportations of Central Americans traveling to the U.S. – primarily Guatemalans, Hondurans and Salvadorans – more than doubled, from 78,733 in 2013 to 176,726 in 2015. During the same period, U.S. border agents detained half as many Central American migrants at the border.
Source: Mexico’s next president likely to defy Trump on immigration : The Conversation