The predictions were dire: Coronavirus lockdowns would put millions of Americans out of work, stripping them of their health insurance and pushing them into Medicaid, the health insurance program for low-income people. In California, Gov. Gavin Newsoms administration projected that the pandemic would force about 2 million additional people to sign up for the states Medicaid program, called Medi-Cal, by July, raising enrollment to an all-time high of 14.5 million Californians — more than one-third of the state’s population. But July is almost over, and Medi-Cal enrollment has hovered around 12.5 million since March, when the pandemic shut down much...