My prediction!
The Mexican government will be forced to work with the cartels to create the world's largest drug empire. Why? Because Trump is going to make Mexico pay for a gigantic wall that spans the US-Mexico border! But why do they do they build this wall to keep themselves out? Well, from the words of Donald Trump, "I love Mexico... Mexicans love me". The Mexicans do indeed love Donald Trump so much that they work with the cartels to fund the project. In exchange, theyre allowed exclusive access across the border.
The best part of this plan? Donald Trump is its mastermind

It's a win-win, because Mexico gets to build a wall out of love for their neighbor's president, and with the severe influx in drugs, Trump gets to crackdown on drug abuse. With the drug pandemic worse than ever, Trump signs an executive order to provide the DEA access to the national guard. Tanks roll into a ghetto near you, and around 5% of the minority population is sent to military detainment camps where they are subject to "enhanced interrogation".
The detainees can't help but roll on their friends and family as they are subjected to their enhanced interrogations. As a result, Trump signs yet another executive order to immediately invest in Trump Prisons™ across the country. There, we send a significant portion of the countries minorities, welfare recipients, and those in the lower socioeconomic class. As President Trump rids us of society's leeches, the middle-class is unburied from beneath their enormous weight.
Finally, America is made great again