Even sympathetic senators cite misgivings with bill's current form.
Students Matter pulls its support, but Assemblywoman Bonilla gains other backers.
The bill would mandate coaching for ineffective teachers and make it easier to fire them.
Districts would get $900 million if extra revenue comes through.
Child care and early education advocates were pleased to see $55 million in restored funding for state preschool and child care in the budget compromise working its way to the governor’s desk.