But the United States' relationship with its southern neighbor, traditionally a strong ally, seems likely to remain precarious: Mexico has been a focal point of criticism of Trump's since day one of the then-candidate's campaign for president. The president and his team have continuously promised that the construction of a larger literal, physical barrier -- a wall -- between the countries is imminent; Mexico's government opposes the project. Further, Kelly on Tuesday made public memos that detail sweeping plans to ramp up deportations of those in the U.S. lacking documentation, many of whom are of Mexican origin.