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).
In the 1920s, Republicans won all three presidential elections with anywhere from 54 to 60.3 percent of the popular vote. During 1930s and 1940s, the balance flipped, with Franklin Roosevelt winning anywhere from 53.4 to 60.8 percent of the popular vote, and as much as 98.5 percent of the Electoral College.