I've been looking online for a point on the map in Mexico as to where this caravan is. None of the articles can say where the front of the line is right now. How can I find that out?

I figured that if you know their route, you can find a landmark where it makes sense to set up some way to block them.

One or two articles said they were headed to California, not Texas.

I don't see why Trump couldn't pay someone to set up some kind of blockage or barrier on a route they must take. Maybe give them some kind of deal they can't refuse?

Just spitballin'.