Governor Jerry Brown is expected in San Francisco  Wednesday afternoon. It will be his second event of the day to celebrate his signing of a bill unleashing billions of dollars for the state's high-speed rail project linking San Diego to Los Angeles and San Francisco.

Brown signed the bill in Los Angeles Wednesday morning.
 
"There are people. I call them declinists," said Brown. "They say California’s best days are behind us. That’s not true. We’re building for the future. Millions of people are coming to California and they’re going to ride the rails again. "

The bullet train does face future challenges. The project has become increasingly unpopular with taxpayers amid the state's budget crisis. And Republicans in the Congress are promising to block future funding for the estimated $68 billion project.

The bill allows the state to claim more than $3 billion in federal funding and will be paired with another $2.6 billion in state funds.

Supporters say a trip on the bullet train from L.A. to San Francisco could take just two hours and 40 minutes.