SACRAMENTO - A group of Democratic state lawmakers introduced legislation Friday to create a single-payer health care system to cover all Californians, immediately defining the biggest health policy debate of the year and putting enormous political pressure on Gov. Gavin Newsom. The Democratic governor faces the increasingly likely prospect of a Republican-driven recall election later this year. The single-payer bill adds to his political peril from the left if he doesn’t express support, and from the right if he does. State Assembly member Ash Kalra, author of AB 1400, said the coronavirus pandemic has exposed a broken health care system...