Gov. Gavin Newsom on Wednesday morning will detail his proposed budget for the 2024-25 fiscal year, but the unveiling looms as a somber affair as he delivers it with a $68 billion deficit. A December report from the Legislative Analyst’s Office showed a tax revenue shortfall in 2023 that created a “serious budget deficit” that may require the state to dip into spending reserves. The legislature has been back in session for just a week, and state spending has already incited intra-party squabbling among lawmakers — particularly over Medi-Cal expansion covering California’s undocumented immigran…