North American Union. Mexico, Canada and the US.

Remember when that was discussed here?

I don't think that stupid wall will stop any of that. They just want to be able to regulate the border more efficiently.

It's about empire building. Merging countries makes bigger empires.

That's what the Civil war was really about. The states wanted to keep their power and remain separate individual nation-states. But the ones in charge wanted them united as one. Bloodiest battle in our history.