Because of their vital contributions and more politicians becoming sympathetic to their cause as a result.
It would be drier because the mountains would stop rain from coming over into the valley. It's called the rain shadow effect or something. That's has much as I know.
Answer:
The answer is Nullification Theory.
The term "Braceros" mostly describes "immigrants from Mexico who had contracts to work in America, mostly in agriculture" The term comes from the Spanish<em> "Brazos" (Arms) </em>and it makes reference to the fact that Mexicans work mainly with their when involved in agricultural work.
It is necessary to mention that not all <em>"Braceros"</em> have contracts to work, a lot of them just cross the border as <em>" Mojados" -because they cross the Bravo River as illegal inmigrants and get wet, therfore the term Mojado (wet).</em>
Basically, not everyone desired a strong central government
after the revolution, which was not being under the leadership of a strong
central government. The constitution confines the influences of the federal
government but it has been fragmented, because the people no longer want to be accountable
for the argument of their privileges.