There is no agreement that this has happened from the news sources I have seen. The mob was averaging 22 miles/day for the first 9 days and I doubt that the speed has increased enough to go another 800 miles. The last news was that it was not going to be allowed to go to Mexico City so it was still in Oxaca as of yesterday.
If you have any evidence to support your assertion I would like to see it. Trying to get real information about this is very difficult.
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So you don’t understand that food, water, and porta-potties are being supplied by a complex and costly logistics system?
You must be relying on the MSFNM for your (dis)information.