Bernie Sanders discusses health care in Emeryville

EMERYVILLE, Calif. (KGO) -- We're just one week away from the California primary and Democratic presidential candidate is going all-in in the state with more events in the Bay Area.

Bernie Sander's second day in Northern California is action-packed, as he hopes to topple frontrunner Hillary Clinton in a last-minute push that may be picking up steam.

Sanders has been running a marathon campaign.

Tuesday morning, he talked about health care with the California Nurses' Union in Emeryville. It started a few years ago when Sanders fought for better safe guards for the nurses.

Sanders said our present health care system has not gone far enough. The solution to America's health care crisis is a single-payer national care program like Canada and some countries in Europe.

RELATED: Estimated 20,000 people attend Bernie Sanders rally in Oakland

"Now I worked on the Affordable Care Act and I think it has made some significant improvements, but clearly it has not gone far enough. How can we be satisfied when 28 million people in this country today have zero health insurance? How can we be satisfied when even more, and that number is growing every day, are underinsured with high deductibles and high co-payments?" Sanders asked.

Earlier, California Governor Jerry Brown endorsed Hillary Clinton. Sanders said he is not surprised because he is used to people in the establishment not supporting him.

He heads next to Santa Cruz for a 1 p.m. rally at the Kaiser Permanente Arena.

He will also speak in Monterey Tuesday night.

For full coverage on the presidential election, click here.