Californians weren't persuaded in 2010, but Colorado and Washington state voters in November approved ballot measures that legalized marijuana:

California

  • Measure: Proposition 19; November 2010

  • Result: 46.5 percent yes, 53.5 percent no

  • Details: Would have let those older than 21 possess and consume marijuana, as well as let state and local governments authorize, regulate and tax commercial marijuana-related activities under certain conditions.

  • Campaign finance: Raised $3.14 million, spent $3.22 million

    Washington

  • Measure: Initiative 502; November 2012

  • Result: 55.7 percent yes, 44.3 percent no

  • Details: Lets those older than 21 possess and consume marijuana; allows production, processing and sales subject to licensing and regulation by state liquor control board; imposes 25 percent excise tax on wholesale and retail sales; earmarks revenue for substance-abuse prevention, research, education, health care and other purposes; amends DUI laws to include THC blood concentration.

  • Campaign finance: Raised $6.17 million, spent $6.13 million

    Colorado

  • Measure: Amendment 64; November 2012


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  • Result: 55.3 percent yes, 44.7 percent no

  • Details: Lets those older than 21 possess and consume marijuana; allows licensing of farms, factories, testing facilities and retail stores, but lets local governments regulate or prohibit; requires Assembly to enact excise tax on wholesale sales, with first $40 million in revenue directed to public school capital construction assistance fund; requires Assembly to enact laws for farming, processing and sale of industrial hemp

  • Campaign finance: Raised $2.03 million, spent $1.97 million