The Mexican Central Bank is increasing its rate due to its high inflation. Mexico has a trade surplus that will grow due to weakened currency. The Mexican Peso weakened off fears of what Trump will do and not something concrete. It is a Carry Trade.
Read more about the fundamentals of this position here.
Technically the 20 MA is crossing below the 50 MA a very popular bearish signal. It has been in a downtrend since reaching its top.