15 groups spent more than $1 billion on California political efforts

Casino operators, drug firms and unions for teachers and public employees spent the money over the last decade to influence voters and officials, the state Fair Political Practices Commission said.

Fifteen special interest groups including casino operators, drug firms and unions for teachers and public employees spent more than $1 billion in the last decade trying to influence California voters and officials, the state's political watchdog agency reported Wednesday.

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