Complex sentence: On February 29,1968, the Kerner Commission's report on racial unrest in American cities during the previous summer blamed "white racism" for the violence, but its findings were largely dismissed by the Johnson administration.
Split into simpler sentences: On February 29,1968, the Kerner Commission issued a report on the racial unrest that had effected American cities during the previous summer. The Kerner Commission blamed "white racism" for the violence, but its findings were largely dismissed by the Johnson administration.