What effect has U. S. foreign policy with Mexico had on American immigration?

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i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years

a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.