And they said he was insane:

To threaten tariffs on Mexican produced goods and services unless Mexico did something to stem the flow of invaders to our country through Mexico…..(Hell, if they’d just not FACILITATE their passage, it would be good…)

They said:
It wouldn’t work…

The Mexican’s didn’t have the manpower to do anything about it.
It was impossible to stem the flow

and so on and so on….

Yet, oddly enough, it would seem that the Mexicans are at least making the attempt…or faking it, anyway.

Either way, they are arresting people and turning others away.

Funny, that….Threats of economic damage to THEIR country when their actions lead to economic damage to the US actually worked….
Whoda thought?