Proposition 1B, the multibillion transportation bond approved in the 2006 election, was supposed to deliver funding to purchase more cars and expand Amtrak California services, including the creation of a "Coast Daylight" train from SF to LA via the 101 corridor.
Those funds haven't materialized because Arnold Schwarzenegger's Department of Finance stunningly claims that there is no need for new cars. According to the Rail Passenger Association of California and Nevada (RailPAC):
The Department of Finance, whose director Michael Genest maintains that public fund support for mass transit, particularly the intercity rail program, is not a legitimate expenditure of public funds, has conducted an "audit" that said "we don't see you need it." So, "we can't spend any because of that." That puts the expected order of new cars for the Surfliners, Capitols, and San Joaquins on hold.
What happened was that Genest sent auditors to ride the Capitol Corridor in the middle of the day on a Wednesday in the middle of January - traditionally a time of low ridership, whereas the route is packed to the rafters on weekends and during commute hours. This flawed "sample" enabled the Schwarzenegger administration to extend its war on public transportation to the successful Amtrak California system, in an attempt to starve it of services right at the moment when Californians are embracing intercity rail.