Answer is the court system was changed to allow a president to be charged with a crime while in office.
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The Immigration Act of 1924 limited the number of immigrants allowed entry into the United States through a national origins
The south was mainly agricultural, cultivating cotton in some form was most people's entire livelihood, creating sort of a cultural divide from the north. plus, the menial and arduous labour in the south was incredibly appealing for slave owners, but this didn't happen in the north where factories and mills were everywhere and staffed by non enslaved people. cotton united the two by the south growing it and the north turning it into textiles and other finished products. together they had quite a good system since each part was able to specialize
