They've been invited as a guest by the South American federation for the last few competitions. The United States have also competed in the Copa America. Twelve teams is a better fit for a competition than ten, it seems.
Also, they make a good potential market: 112 million of soccer-loving, TV-viewing Mexicans is a good reason to let them in.
Mexico also has club teams compete in Copa Libertadores (CONMEBOL's Champions League) and sometimes Copa Sudamerica. Mexico benefits from the experience of competing against better teams, teams that are way better than CONCACAF teams.
mexico is in the continent of north america!
The Gulf of Mexico is in the North American continent. North America, or northern America depending on your continent model.
north America
The North American Continent
North America
North America
North America.
North America.
The United States is located in North America.
North America
North America.
The United States are in North America.