The 1849 constitution of California provided that the "number of Senators shall not be less than one third, nor more than one half of that of the members of the Assembly..." The 1849 constitution also provided that senators served two-year terms and were to be elected bienally, with the total number of senators being divided into two classes so that one half of the senators would be elected annually. Such districts were to be "as nearly equal in population as may be, and composed of contiguous territory". There was to be one senate district for each senator. Such districts were also required to preserve political boundaries: "In the formation of such districts, no county, or city and county, shall be divided, unless it contain a sufficient population within itself to form two or more districts; nor shall a part of any county, or of any city and county, be united with any other county, or city and county, in forming any district." Between 1933 and 1967, state legislative
districts were drawn according to the "Little Federal Model" by which Assembly seats were drawn according to population and senate seats were drawn according to county lines. The guidelines were that no senate district would include more than three
counties and none would include less than one complete county. This led to the situation of a populous county such as
Los Angeles County (1960 population of 6 million) being accorded the same number of state senators (one) as less populous counties such as
Alpine County (1960 pop. 397). The senate districts remained unaltered from 1933 to 1967, regardless of the changes in the population distribution. In
Reynolds v. Sims, the
United States Supreme Court compelled all states to draw up districts with equal population. As such, boundaries were changed to comply with the ruling. The California State Senate has never been expanded since the enactment of the 1879 constitution. In 1962, voters were asked via
initiative California Proposition 23 whether to expand the state senate by 10 seats, thereby increasing the size of the body to 50 seats, and to abandon the little federal model. This proposition was rejected by the voters 46.65% - 53.35% (2,181,758 - 2,495,440). == Leadership ==