After the war many were demanding shorter hours and more pay because of the high prices of things.
The Spanish had superior weaponry to the Aztecs, we're aided by rival tribes who resented Aztec rule and also the effect of the diseases spread to the Aztecs by the Spanish lacking immunity many became seriously ill and died
Members of the Immigration Restoration League wanted<span> lobbied Congress to control the immigrant population with legislation.</span>
Too much power in the state governments
Because of ties to britain, germany sinking its war ships and germany trying to get mexico to declare war on the US....
hope this helps...
