What is needed is for a state, preferably a border state, to declare war on Mexico and force the federal govt to act. Then Pres. Trump can do what needs to be done to secure the border, and send in the military to destroy the cartels as well. The states, just like the congress, have the constitutional authority to declare war.
That’s a good idea. Something has to give. I wouldn’t doubt that President Trump announces he’s declaring a national emergency at the State of the Union. I wouldn’t be surprised if a bunch of Dems get up and walk out.