US vs. Nixon was the Supreme Court case that was focused around whether or not Nixon would be forced to release tape recordings and other evidence to federal courts.
In a unanimous decision, the court ruled he must disclose these documents. Essentially, this court ruled that just like other citizens, Nixon is not above the law. When any individual is subpoena for records they must provide them, including the president.
There was much cultural differences that made it hard for African Americans to get along with locals. Many were also afraid that African Americans would take their jobs.