One such way corporations can use money to sway voters is through advertising and spreading information about propositions. For example, a California ballot initiative, Proposition 37 from 2012, attracted a disproportionately high level of spending from corporations. The proposition would mandate that all foods containing genetically modified organisms would have to be labeled as such. Corporations including Monsanto and DuPont spent $45 million against Prop 37 - five times more than the money spent by supporters of the proposition. The proposition was defeated by a margin of 51% to 48%, a result that left many pro-Prop 37 groups blaming unfair financing as the reason for the defeat.