Los Angeles news online: Prop. 13 flexes its political muscle Prop. 13 flexes its political muscle ================================================================================ politics on 28/02/2010 08:00:00 Meg Whitman's use of the measure as a weapon against Poizner in the GOP race for governor recalls the politics of 1978, the year the initiative passed. Proposition 13 made its return to electoral politics last week, proving anew the continued political heft of the 32-year-old measure.