By Vanessa G. Sánchez, KFF Health News (TNS) LOS ANGELES — President-elect Donald Trump’s promise of mass deportations and tougher immigration restrictions is deepening mistrust of the health care system among California’s immigrants and clouding the future for providers serving the state’s most impoverished residents. At the same time, immigrants living illegally in Southern California told KFF Health News they thought the economy would improve and their incomes might increase under Trump, and for some that outweighed concerns about health care. Community health workers say fear of deportation is already affecting participation in Medi-Cal, the state’s Medicaid program for low-income residents, which was expanded in phases to all immigrants regardless of residency status over the past several years.