I think this speech is going to go down as a watershed moment for this Presidency...
The moment when even his casual base* looked at him and said:
"What is he talking about?"
"Is he serious? National Guard to defend against Mexico?"
"Anything about WMD from Tijuana?"
"Come on, you are really messing up the TiVo for my season finales."
He took a bad plan, and took it public in a big way. And I don't think it fooled anyone.
* By "casual base" I mean those who reflexively support the President, put magnets on the cars, etc, but don't pay close attention to everything. He unmasked himself to those people last night, and I think he is going to pay. Hopefully the Congressional Republicans pay right along with him.