PHOENIX — A $9.2 billion spending plan that trims more than $150 million from Gov. Jan Brewer’s proposal was introduced in the Arizona Senate on Monday, but Senate President Andy Biggs’ proposal faces an uncertain future in the House and with Gov. Jan Brewer.

The spending plan Biggs introduced trims some money from the governor’s proposal to set up a new state child welfare agency. Also being trimmed is her proposed $50 million deposit into the state’s rainy day fund, which currently stands at $450 million.