Wikipedia article wrote:
For much of the late 20th century, USC has had a reputation for being a politically conservative campus. In the politically charged times of the 1960s-70s, and in stark contrast to the University of California campuses, USC was one of the few campuses in California where then-Governor Ronald Reagan could visit without additional protection. This image may have been reinforced by the fact that in the early seventies, several conservative Republican alumni, known collectively as the "USC mafia", served on then President Richard Nixon's staff as well as during Nixon's reelection campaign, which was later tainted by the notorious Watergate scandal. USC's student body has historically consisted of a Republican majority, as suggested by the fact that the major conservative student group on campus, the USC Republicans, had traditionally outnumbered and outvoiced the school's Democratic counterpart for much of its history. Furthermore, student politics at USC--often between conservative factions--has been notoriously corrupt; the corruption and problems were notable enough that they appeared in the screenplay for All the President's Men.[f]
In recent times, this conservative majority has begun to give way to an increasingly powerful liberal voice, which has been attributed to the growing diversity, both regional and ethnic, of the student body; student membership in the USC Democrats has surpassed that of the USC Republicans in recent years.