There is increasing public discussion about whether the cultural institutions of the United States are ideologically skewed, relative to the general population. The major realms of political culture include the news media, K-12 schooling, academia, governmental institutions, cause-directed organizations, grant-making private foundations, the entertainment industries, and the arts. There is increasing belief that these institutions are dominated by people who vote Democratic. Where evidence is available, it generally backs up the claim that the D to R ratios in such settings are very lopsided. However, the evidence is much less abundant than one might guess. Much of the evidence that does exist is generated by openly conservative organizations, and the research is rarely reported in a scholarly manner. This paper contributes to the task of ascertaining the basic facts about ideological lopsidedness in academia by reporting the results of a systematic study of voter registration of large parts of the faculty at University of California-Berkeley and Stanford University. (Contains 6 figures, 1 table, and 17 notes.)