Complex sentence: He was also effective in attacking Davis for receiving thousands of dollars in political donations from out-of-state groups principally from New York City and Los Angeles which favored forcing children into out of district schools to achieve a Federal conceived racial balance.
Split into simpler sentences: He was also effective in attacking Davis for receiving thousands of dollars in political donations from out-of-state groups, principally from New York City and Los Angeles. These donors favored forcing children into out of district schools to achieve a Federal conceived racial balance.