With the military down at the boarder it is a good time to work on getting the Cartel/drug smugglers.
It ties into his reduce the Heroin promises.
boarder = border
I am quite sure that the cartels are none too happy about these events. While they profit from alien smuggling and use the clutter of illegal immigration to help move their products, drugs are their big cash cow.
The US military on the border is something the cartels have been trying to avoid for decades. Which is why we have not seen the kind of violence on our side of the border as we see in Mexican border towns daily.
I would not be surprised if the cartels tell the "organizers" to stand down or face a dismemberment death.