[UPDATED at 12:45 p.m. ET]
SAN FRANCISCO 鈥 Sandra Yamileth Lopez works at one of San Francisco鈥檚 most celebrated bakeries, Tartine. She fled horrific violence in Honduras and applied for asylum in California. She can work legally but, as for many new immigrants, it will be years before she becomes eligible for Medicaid or federal health insurance subsidies.
In the meantime, she enrolled in Healthy San Francisco, a pioneering program that guarantees health care to any uninsured city resident. Lopez can live her life again, she said.
鈥淚 had a lot of recurring dreams about what had been happening,鈥 said Lopez. 鈥淚 was also not able to relax. So, doctors gave me medication to help me sleep and to help me relax with my anxiety.鈥
Healthy San Francisco launched in 2007, under then-Mayor Gavin Newsom, years before the Affordable Care Act and at a time when universal coverage was an audacious 鈥 and radically liberal 鈥 goal.
Partially funded through employer fees, Healthy San Francisco is a reorganization of the city鈥檚 public health system. Patients were directed away from expensive and overburdened emergency rooms and into primary care clinics. They can get visits to specialists, prescription drugs and, perhaps most important, protection from massive bills should they need emergency care.
Although it may seem simple and obvious now, said Dr. Alice Chen, chief medical officer and deputy director for the San Francisco Health Network, turning a public safety net that rescued people in crisis into a proactive, coordinated system was a revelation.
鈥淲e took the existing organizations that provided care, made it into a system, and then actually created an interface for patients who were uninsured and reached out to them and said, 鈥楥ome on in, come in and use the system of care,鈥欌 Chen said.
After the major provisions of Obamacare went into effect in 2014, most Healthy San Francisco patients enrolled in Medicaid or bought subsidized private plans.
But about 13,000 remain: those who earn too much for public programs but still can鈥檛 afford private insurance, and people like Juan, who are undocumented and barred from federal public assistance. Juan, who asked us to use only his first name, has been recovering from a heart attack under the watchful eye of a cardiologist.
He takes a number of prescription drugs that he otherwise could not afford. But here鈥檚 the dilemma: He鈥檚 covered only inside the city limits of San Francisco 鈥 it鈥檚 not portable health insurance. Juan, who works in a local warehouse, wants to move to San Diego to care for his aging mother, but then he鈥檒l be out of the program and unable to afford his medications.
鈥淪ome of them are over thousands of dollars a month, and if I don鈥檛 have that coverage in San Diego, I would have to pay for it,鈥 he said. 鈥淎nd if I don鈥檛 take that medication, it could be life-threatening.鈥
About 3 million Californians remain uninsured. About half of those lack legal status like Juan, and the rest cannot afford the sky-high cost of American health care.
Fury over those costs, even for those with insurance, has energized Democrats who want the U.S. to have universal health coverage, like all other industrialized nations. But there are many variations: single-payer, 鈥淢edicare-for-all,鈥 plans that would largely do away with insurance companies or employer-based coverage, and others that would simply regulate them more closely.
Now that the former mayor of San Francisco has become governor, Newsom said he wants to make California a testing ground for universal coverage.
鈥淧remiums are going up, deductibles are getting higher, people are feeling stress and anxiety about what鈥檚 happening, or not happening, federally,鈥 Newsom said. 鈥淎nd they鈥檙e concerned that things will get worse, not necessarily better, in the medium term, and a lot worse in the long term.鈥
Newsom has asked the Trump administration to allow California to pursue a single-payer system. Since that鈥檚 unlikely to happen, he鈥檚 pursuing other options by creating what he says is the nation鈥檚 largest prescription-drug purchasing pool to negotiate drug prices, restoring the individual health insurance mandate, allowing undocumented young adults up to age 26 into Medicaid and giving state subsidies to 250,000 more middle-income Californians.
鈥淵ou look around the rest of the world, they鈥檙e just rolling their eyes,鈥 Newsom said. 鈥淗igher life expectancy, they do chronic disease management better than the United States, for roughly half the price. You look at quality indexes, we drop to 37th in the world in our quality index last year, below Cuba, and Costa Rica.鈥
He added, 鈥淭his is ludicrous, and it鈥檚 incumbent upon governors, mayors to take the lead in the absence of the federal government doing its job.鈥
And that鈥檚 happening across the nation.
In Washington, Democratic Gov. Jay Inslee has proposed a low-cost public health plan to compete with private insurers on the state insurance exchange. In New Mexico, Democrats are sorting out how people without insurance could buy in to Medicaid.
And in New York City, Mayor Bill De Blasio is promising health care to undocumented immigrants and those who can鈥檛 afford insurance.
鈥淭here鈥檚 enough people in this city who don鈥檛 have any health care coverage to fill the entire city of Milwaukee, or the entire city of Baltimore. That鈥檚 just a vast number of people,鈥 he said.
It鈥檚 a total of some 600,000 New Yorkers.
De Blasio recruited Dr. Mitch Katz, the public health mastermind behind Healthy San Francisco, to build a similar program in the city鈥檚 five boroughs. City officials plan to pump more than $100 million a year into the city鈥檚 financially strained public hospitals and clinics and actively enroll the uninsured into a program called NYC Care.

Andrew Sharkey, a freelance musician in New York City, dropped his insurance coverage in 2015, despite having Crohn鈥檚 disease.(Jason Kane/PBS NewsHour )
That includes struggling young people, like freelance musician and composer Andrew Sharkey, who has gone untreated for Crohn鈥檚, a serious bowel disease. He dropped his coverage in 2015.
鈥淚 just didn鈥檛 know where the money was going to come from. I was working two jobs. They were both part-time so that they didn鈥檛 have to pay into my insurance,鈥 said Sharkey.
Under de Blasio鈥檚 plan, Sharkey would have a regular primary care doctor and treatment from specialists and access to prescription drugs.
Word about NYC Care is already spreading among the more than 300,000 undocumented immigrants in the city, like Antonio, who asked us to use only his first name. He thinks de Blasio鈥檚 plan would simplify his life, allowing him to focus more on his health and work, and less on the endless paperwork that comes with being uninsured.
鈥淥h my God, that is going to be a great change for everyone,鈥 said Antonio. 鈥淣ow when I go to an appointment, I need to run around from social workers, to organizations to find ways to reduce those bills.鈥
Americans already pay for undocumented immigrants when they come to the emergency room, said Mayor de Blasio.
鈥淟et鈥檚 face it, we kind of kid ourselves in this country about the reality of health care. So right away we鈥檝e got 12 million, maybe even more, undocumented folks who are part of the fabric of the United States of America, and who need health care because they are human beings,鈥 he said. 鈥淏ut, in all of our policymaking, we deny their existence. This is the greatest 鈥榙on鈥檛 ask, don鈥檛 tell鈥 you鈥檝e ever seen.鈥
De Blasio added, 鈥淲e should have universal health care nationally, we should have single-payer, we should have 鈥楳edicare-for-all,鈥 but in the absence of that, health care has become this luxury item for so many people.鈥
Universal health care polls well with American voters, but the Trump administration said if it became a national policy, it would consume the federal budget.
鈥淚t鈥檚 fiscally unsustainable,鈥 said Seema Verma, administrator of the Centers for Medicare & Medicaid Services. 鈥淏ut to make matters worse, it would destroy Medicare for the seniors who spent their whole life paying into it.鈥
And some Democrats are voicing warnings of their own. Former Vermont Gov. Peter Shumlin was forced to abandon his attempt to bring single-payer to Vermont.
鈥淲hat I鈥檝e realized, and I think a lot of legislators did, too, was, 鈥楬ey, if we don鈥檛 get costs under control first, instead of getting that premium increase in the mail, you鈥檙e going to get a tax increase passed through your legislature on an annual basis,鈥欌 Shumlin said. 鈥淎nd there aren鈥檛 very many politicians from any party who want to be raising taxes at the rate of our current health care inflation.鈥
鈥淧BS NewsHour鈥 producers Jason Kane and Kira Wakeam contributed to this report.