SP 800-100, Information Security Handbook: A Guide for Managers (October. 2006 ), is available at: http://dx.doi.org/10.6028/NIST.SP.800 -10 0. (redirects to http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800 -1 00.pdf ).
What percent of registered voters are Republican? As of 2011, Gallup polling found that 31% of Americans identified as Democrats (tying a 23-year low), 27% as Republicans, and 40% as independents (largest in 60 years).
Ha! But it depends what you mean by 'control'. In terms of voters, there is historical data at the Secretary of State's site (http://www.sos.ca.gov/elections/elections_u.htm). It shows that in 1934, 1.5 million Democrats voted, compared to 1.4 million Republicans (and 154K other). That's been the way it has been ever since.