Access to health care

Former Vice President and Democratic presidential candidate Joe Biden speaks during a public employees union candidate forum Saturday, Aug. 3, 2019, in Las Vegas. (AP Photo/John Locher)

Democratic presidential candidate and former Texas Rep. Beto O'Rourke speaks during a public employees union candidate forum Saturday, Aug. 3, 2019, in Las Vegas. (AP Photo/John Locher)

Democratic presidential candidate Marianne Williamson speaks during a public employees union candidate forum Saturday, Aug. 3, 2019, in Las Vegas. (AP Photo/John Locher)

Sen. Bernie Sanders, I-Vt., gestures toward Sen. Elizabeth Warren, D-Mass., during the first of two Democratic presidential primary debates hosted by CNN Tuesday, July 30, 2019, in the Fox Theatre in Detroit. (AP Photo/Paul Sancya)

Sen. Bernie Sanders, I-Vt., gestures toward Sen. Elizabeth Warren, D-Mass., during the first of two Democratic presidential primary debates hosted by CNN Tuesday, July 30, 2019, in the Fox Theatre in Detroit. (AP Photo/Paul Sancya)

Cancer patient Kim Lauerman poses for a portrait in her home Wednesday, June 26, 2019, in Alpharetta, Ga. After Lauerman was diagnosed with ovarian cancer, doctors wanted to give her a drug that helps prevent infections and fever during chemotherapy. Her insurer said no. Doctors say they worry about the growing influence insurers have over patient care. They say treatment delays and the problems they create are becoming common because routine things like imaging exams or prescriptions now require insurer approval first. (AP Photo/John Bazemore)

Cancer patient Kim Lauerman poses for a portrait in her home Wednesday, June 26, 2019, in Alpharetta, Ga. After Lauerman was diagnosed with ovarian cancer, doctors wanted to give her a drug that helps prevent infections and fever during chemotherapy. Her insurer said no. Doctors say they worry about the growing influence insurers have over patient care. They say treatment delays and the problems they create are becoming common because routine things like imaging exams or prescriptions now require insurer approval first. (AP Photo/John Bazemore)

FILE - In this June 20, 2019, file photo, the Capitol is seen from the roof of the Canadian Embassy in Washington. America’s much-maligned health care system is covering more people than ever, a fact lost on many of the 2020 presidential candidates, who keep debating polarizing ideas about how to set up coverage, from Sen. Bernie Sanders’ call for replacing private insurance with a government plan, to President Donald Trump’s determination to erase “Obamacare.” (AP Photo/J. Scott Applewhite, File)

FILE - In this June 20, 2019, file photo, the Capitol is seen from the roof of the Canadian Embassy in Washington. America’s much-maligned health care system is covering more people than ever, a fact lost on many of the 2020 presidential candidates, who keep debating polarizing ideas about how to set up coverage, from Sen. Bernie Sanders’ call for replacing private insurance with a government plan, to President Donald Trump’s determination to erase “Obamacare.” (AP Photo/J. Scott Applewhite, File)

FILE - In this June 20, 2019, file photo, the Capitol is seen from the roof of the Canadian Embassy in Washington. America’s much-maligned health care system is covering more people than ever, a fact lost on many of the 2020 presidential candidates, who keep debating polarizing ideas about how to set up coverage, from Sen. Bernie Sanders’ call for replacing private insurance with a government plan, to President Donald Trump’s determination to erase “Obamacare.” (AP Photo/J. Scott Applewhite, File)