Congress holds the purse.
Republicans used to hold it tightly, seems they are willing to throw BILLIONS away for 'the wall' which isn't practical, nor will it attain the goal he's promoting.
Many come in by plane & overstay their visa, other come in underground, I expect more will.
Truth be told not many are coming from Mexico these days.
Cactus Flower, it feels as if the country has been taken over by a madman & those in his party refuse to say, the emperor has NO CLOTHES!
Its terrifying, really terrifying!